[OSLER, HOSKIN & HARCOURT LETTERHEAD] Exhibit 5.1 Our Matter Number: 1036920 July 8, 2003 CanWest Media Inc. 31st Floor, TD Centre 201 Portage Avenue Winnipeg, Manitoba Canada R3B 3L7 The Parties Identified on Schedules A and B hereto Ladies and Gentlemen: We have acted as Canadian counsel to CanWest Media Inc., a Canadian federal corporation (the "Company"), the parties identified on Schedule A hereto (the "Canadian Guarantors") and the parties identified on Schedule B hereto (the "Additional Canadian Guarantors") in connection with the Company's offer to exchange (the "Exchange Offer") its 7-5/8% Series B Senior Notes due 2013 (the "Exchange Notes") for up to U.S.$200,000,000.00 of its outstanding 7-5/8% Series A Senior Notes due 2013 (the "Initial Notes"). This opinion is being delivered to you for filing as an exhibit to the Registration Statement on Form F-4 filed by the Company, the Canadian Guarantors and the other guarantors identified therein (collectively, the "Guarantors") with the United States Securities and Exchange Commission (the "Commission") on or about the date hereof (the "Registration Statement") pursuant to the United States Securities Act of 1933, as amended (the "Securities Act"), relating to the registration of the Exchange Notes (and the related Guarantee of the Guarantors (the "Guarantees")) under the Securities Act. The Initial Notes were issued, and the Exchange Notes will be issued, pursuant to an Indenture, dated as of April 3, 2003 (the "Indenture"), among the Company, the Guarantors and The Bank of New York, as Trustee. A. DOCUMENTATION As counsel for the Company, we have reviewed the Registration Statement, the prospectus contained therein and the Indenture. B. JURISDICTION We are solicitors qualified to practice law in the Province of Ontario and we express no opinion as to any laws or any matters governed by any laws other than the laws of the Province of Ontario and the federal laws of Canada applicable therein. - 2 - [OSLER, HOSKIN & HARCOURT] C. SCOPE OF EXAMINATIONS In connection with the opinions expressed in this opinion letter, we have considered such questions of law and examined such public and corporate records, certificates and other documents and conducted such other examinations as we have considered necessary. D. ASSUMPTIONS AND RELIANCES We have assumed the legal capacity of all individuals, the genuineness of all signatures, the authenticity of all documents submitted to us as originals and the conformity to authentic original documents of all documents submitted to us as certified, conformed, photostatic or facsimile copies. In expressing the opinion set forth in paragraph 1, we have relied upon certificates of compliance and certificates of status dated no later than July 7, 2003 in respect of the Company and the Canadian Guarantors issued by Industry Canada or the Ministry of Consumer and Business Services as applicable. In expressing the opinion set forth in paragraph 5, we have assumed that the Additional Canadian Guarantors exist under the laws of their respective jurisdictions of incorporation; that there are no restrictions on the corporate power and capacity of the Additional Canadian Guarantors to execute, deliver and perform their respective obligations under the Indenture, the Exchange Notes and the Guarantee; and that the Additional Canadian Guarantors have duly authorized, executed and delivered the Indenture, the Exchange Notes and the Guarantee. To the extent that the opinions expressed in this letter are based on factual matters, we have relied solely upon an officers' certificate of Pamela Harrod, Associate General Counsel and Assistant Secretary of the Company, as to such matters. A copy of such certificate is attached to this opinion letter. E. OPINIONS On the basis of the foregoing and subject to the qualifications hereinafter expressed, we are of the opinion that: 1. The Company and the Canadian Guarantors exist under the laws of their respective jurisdictions of organization, and there are no restrictions on the corporate power and capacity of the Company or any of the Canadian Guarantors to execute, deliver and perform their respective obligations under the Exchange Notes, the Indenture and the Guarantee, to the extent a party thereto. 2. The Exchange Notes have been duly authorized and, when issued, executed and authenticated in accordance with the provisions of the Indenture and delivered in exchange for the Initial Notes, will be duly executed and delivered by the Company. -3- OSLER, HOSKIN & HARCOURT 3. The Indenture has been duly authorized by the Company and each Canadian Guarantor and has been duly executed by the Company and each Canadian Guarantor. 4. The Guarantee has been duly authorized by each Canadian Guarantor and has been duly executed and delivered by each Canadian Guarantor. 5. The execution and delivery of the Indenture, the Exchange Notes and the Guarantee by the Company, the Canadian Guarantors, and the Additional Canadian Guarantors, the performance by the Company, the Canadian Guarantors and the Additional Canadian Guarantors of their obligations thereunder and the enforcement of such obligations do not violate any provision of any federal or provincial law, statute, rule or regulation presently in effect in the Province of Ontario. This opinion is being delivered to you in connection with the Registration Statement and is not to be relied upon, used, circulated, quoted or otherwise referred to for any other purpose without our prior written authorization. Kaye Scholer LLP may rely on this opinion with respect to matters governed by Canadian law for purposes of its opinion to you dated on or about the date hereof. We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the reference to our firm which appears in the prospectus constituting a part thereof and to the references made to us under the caption "Legal Matters" in such prospectus. In giving such consent, we do not thereby admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act, or under the rules and regulations of the Commission thereunder. Yours very truly, /s/ Osler, Hoskin & Harcourt LLP EAS/CJD SCHEDULE A CANADIAN GUARANTORS 1. 2846551 Canada Inc. (CBCA) 2. 3919056 Canada Ltd. (CBCA) 3. Calgary Herald Group Inc. (CBCA) 4. CanWest Interactive Inc. (CBCA) 5. CanWest - Montreal R.P. Holdings Inc. (CBCA) 6. CanWest Publications Inc. (CBCA) 7. CanWest - Windsor R.P. Holdings Inc. (CBCA) 8. Edmonton Journal Group Inc. (CBCA) 9. Global Television Centre Ltd. (CBCA) 10. Global Television Network Inc. (CBCA) 11. Global Television Specialty Networks Inc. (CBCA) 12. Lower Mainland Publishing Group Inc. (CBCA) 13. Montreal Gazette Group Inc. (CBCA) 14. Multisound Publishers Ltd. (CBCA) 15. Nanaimo Daily News Group Inc. (CBCA) 16. Ottawa Citizen Group Inc. (CBCA) 17. Pacific Newspaper Group Inc. (CBCA) 18. Port Alberni Times Group Inc. (CBCA) 19. Regina Leader Post Group Inc. (CBCA) 20. Saskatoon StarPhoenix Group Inc. (CBCA) 21. Southam Digital Inc. (CBCA) 22. Vancouver Island Newspaper Group Inc. (CBCA) 23. Victoria Times Colonist Group Inc. (CBCA) 24. Western Communications Inc. (CBCA) 25. WIC Mobile TV Inc. (CBCA) 26. Windsor Star Group Inc. (CBCA) SCHEDULE B ADDITIONAL CANADIAN GUARANTORS <Table> <Caption> Guarantor Counsel 1. Apple Box Productions Sub Inc. (CBCA) Torys 2. BCTV Holdings Inc. (CBCA) Torys 3. CanWest Media Sales Limited (CBCA) Torys 4. CHBC Holdings Inc. (CBCA) Torys 5. CHEK Holdings Inc. (CBCA) Torys 6. Clarinet Music Inc. (Ontario) Torys 7. Fox Sports World Canada Holdco Inc. (CBCA) Torys 8. Global Centre Inc. (Ontario) Torys 9. Lonestar Holdco Inc. (CBCA) Torys 10. ONtv Holdings Inc. (CBCA) Torys 11. ReachCanada Contact Centre Limited (CBCA) Torys 12. Retro Vista Holdco Inc. (CBCA) Torys 13. Studio Post & Transfer Sub Inc. (CBCA) Torys 14. WIC Television Production Sub Inc. (CBCA) Torys 15. Xtreme Sports Holdco Inc. (CBCA) Torys </Table> CERTIFICATE TO: Osler, Hoskin & Harcourt LLP Torys LLP Pitblado Fasken Martineau DuMoulin LLP (collectively, "Counsel") RE: Offer by CanWest Media Inc. (the "Company") to exchange the Company's 7-5/8% Series B Senior Notes due 2013 (the "Exchange Notes") for up to U.S.$200,000,000 of the Company's outstanding 7-5/8% Series A Senior Notes due 2013 (the "Initial Notes") - -------------------------------------------------------------------------------- In connection with the opinions to be provided by Counsel concerning the transaction described above, the undersigned certifies for and on behalf of the Company, and not personally, as follows: 1. The undersigned is the Associate General Counsel and Assistant Secretary of CanWest Global Communications Corp. ("CanWest") and of the Company and as such is familiar with the books and records, business and properties of the Company and each of the corporations and partnerships listed on Schedule A hereto (each, a "Canadian Guarantor" and, collectively, the "Canadian Guarantors"). 2. The corporate and partnership records and minute books of the Company and each of the Canadian Guarantors provided to Counsel (as indicated on Schedule A hereto) in connection with the offering of the Initial Notes on April 3, 2003 are the original or duplicate corporate and partnership records and minute books of the Company and each of the Canadian Guarantors and contain all articles, partnership agreements and declarations and by-laws of the Company and each of the Canadian Guarantors, current directors', partners' and shareholders' registers of the Company and each of the Canadian Guarantors and all resolutions and minutes of all meetings or other proceedings of the shareholders, partners or directors (or any committee thereof) of the Company or any of the Canadian Guarantors during such periods noted in such corporate and partnership records and minute books. Such corporate and partnership records and minute books are true, correct and complete in all material respects and, since being made available to such Counsel in connection with the offering of the Initial Notes on April 3, 2003, there have been no changes, additions or alterations thereto, other than those changes, additions or alterations thereto, which have been delivered to such Counsel. 3. As of the date of this certificate, no winding up, liquidation, dissolution, insolvency, bankruptcy, amalgamation, reorganization or continuation proceedings have been commenced or are being contemplated by CanWest, the Company or any of the Canadian Guarantors and, after due inquiry, neither CanWest nor the Company has no knowledge of any such proceedings having been commenced or being contemplated by any other party. - 2 - 4. No unanimous shareholders' agreement has been entered into with respect to CanWest, the Company or any of the Canadian Guarantors. 5. The undersigned acknowledges that this certificate is to be relied upon by Counsel in rendering their respective opinions, and may be relied upon by the addressees of such opinions. DATED July 7th, 2003. /s/ Pamela Harrod ------------------------------------ Name: Pamela Harrod Title: Associate General Counsel and Assistant Secretary SCHEDULE A CANADIAN GUARANTORS SUBSIDIARY COUNSEL ---------- ------- 1. 2846551 Canada Inc. (CBCA) Oslers 2. 3919056 Canada Ltd. (CBCA) Oslers 3. Apple Box Productions Sub Inc. (CBCA) Torys 4. BCTV Holdings Inc. (CBCA) Torys 5. Calgary Herald Group Inc. (CBCA) Oslers 6. CanWest Finance Inc./Financiere CanWest Inc. (Quebec) Faskens 7. CanWest Global Broadcasting Inc./Radiodiffusion CanWest Faskens Global Inc. (Quebec) 8. CanWest Interactive Inc. (CBCA) Oslers 9. CanWest Media Sales Limited (CBCA) Torys 10. CanWest -- Montreal R.P. Holdings Inc. (CBCA) Oslers 11. CanWest Publications Inc. (CBCA) Oslers 12. CanWest -- Windsor R.P. Holdings Inc. (CBCA) Oslers 13. CHBC Holdings Inc. (CBCA) Torys 14. CHEK Holdings Inc. (CBCA) Torys 15. Clarinet Music Inc. (Ontario) Torys 16. Edmonton Journal Group Inc. (CBCA) Oslers 17. Fox Sports World Canada Holdco Inc. (CBCA) Torys 18. Global Centre Inc. (Ontario) Torys 19. Global Communications Limited (Manitoba) Pitblado 20. Global Television Centre Ltd. (CBCA) Oslers 21. Global Television Network Inc. (CBCA) Oslers 22. Global Television Network Quebec, Limited Faskens/Pitblado Partnership/Reseau de Television Global Quebec, Societe en commandite (Quebec) 23. Global Television Specialty Networks Inc. (CBCA) Oslers 24. Lonestar Holdco Inc. (CBCA) Torys 25. Lower Mainland Publishing Group Inc. (CBCA) Oslers 26. Montreal Gazette Group Inc. (CBCA) Oslers 27. Multisound Publishers Ltd. (CBCA) Oslers 28. Nanaimo Daily News Group Inc. (CBCA) Oslers 29. ONtv Holdings Inc. (CBCA) Torys 30. Ottawa Citizen Group Inc. (CBCA) Oslers 31. Pacific Newspaper Group Inc. (CBCA) Oslers 32. Port Alberni Times Group Inc. (CBCA) Oslers 33. ReachCanada Contact Centre Limited (CBCA) Torys 34. Regina Leader Post Group Inc. (CBCA) Oslers 35. RetroVista Holdco Inc. (CBCA) Torys 36. Saskatoon StarPhoenix Group Inc. (CBCA) Oslers 37. Southam Digital Inc. (CBCA) Oslers -2- 38. Studio Post & Transfer Sub Inc. (CBCA) Torys 39. Vancouver Island Newspaper Group Inc. (CBCA) Oslers 40. Victoria Times Colonist Group Inc. (CBCA) Oslers 41. Western Communications Inc. (CBCA) Oslers 42. WIC Mobile TV Inc. (CBCA) Oslers 43. WIC Television Production Sub Inc. (CBCA) Torys 44. WIC TV Amalco Inc. (CBCA) Oslers 45. Windsor Star Group Inc. (CBCA) Oslers 46 Xtreme Sports Holdco Inc. (CBCA) Torys