As filed pursuant to Rule 424(b)(3) Under the Securities Act of 1933 Registration No. 333-70252 AIG SUNAMERICA LIFE ASSURANCE COMPANY - -------------------------------------------------------------------------------- VARIABLE SEPARATE ACCOUNT SUPPLEMENT TO THE AMERICAN PATHWAY II VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 POLARIS VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 POLARIS II VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 POLARISAMERICA VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 POLARIS ADVISOR VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 - -------------------------------------------------------------------------------- VARIABLE ANNUITY ACCOUNT ONE SUPPLEMENT TO THE ANCHOR ICAP II VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 - -------------------------------------------------------------------------------- THIS SUPPLEMENT REPLACES THE SUPPLEMENT DATED DECEMBER 16, 2004. The following replaces paragraph under the heading titled LEGAL PROCEEDINGS located in the OTHER INFORMATION section of the prospectus: AIG SunAmerica Life engages in various kinds of routine litigation. In management's opinion, these matters are not material in relation to the financial position of the Company with the exception of the matters disclosed below. A purported class action captioned NIKITA Mehta, as Trustee of the N.D. Mehta Living Trust vs. AIG SunAmerica Life Assurance Company, Case 04L0199, filed on April 5, 2004 in the Circuit Court, Twentieth Judicial District in St. Clair County, Illinois. The lawsuit alleges certain improprieties in conjunction with alleged market timing activities. The probability of any particular outcome cannot be reasonably estimated at this time. Date: January 12, 2005 Please keep this Supplement with your Prospectus Page 1 of 1 AIG SUNAMERICA LIFE ASSURANCE COMPANY - -------------------------------------------------------------------------------- VARIABLE SEPARATE ACCOUNT SUPPLEMENT TO THE AMERICAN PATHWAY II VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 POLARIS VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 POLARIS II VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 POLARISAMERICA VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 POLARIS ADVISOR VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 - -------------------------------------------------------------------------------- VARIABLE ANNUITY ACCOUNT ONE SUPPLEMENT TO THE ANCHOR ICAP II VARIABLE ANNUITY PROSPECTUS DATED MAY 3, 2004 - -------------------------------------------------------------------------------- THIS SUPPLEMENT REPLACES THE SUPPLEMENT DATED DECEMBER 16, 2004. The following replaces paragraph under the heading titled LEGAL PROCEEDINGS located in the OTHER INFORMATION section of the prospectus: AIG SunAmerica Life engages in various kinds of routine litigation. In management's opinion, these matters are not material in relation to the financial position of the Company with the exception of the matters disclosed below. A purported class action captioned NIKITA Mehta, as Trustee of the N.D. Mehta Living Trust vs. AIG SunAmerica Life Assurance Company, Case 04L0199, filed on April 5, 2004 in the Circuit Court, Twentieth Judicial District in St. Clair County, Illinois. The lawsuit alleges certain improprieties in conjunction with alleged market timing activities. The probability of any particular outcome cannot be reasonably estimated at this time. Date: January 12, 2005 Please keep this Supplement with your Prospectus Page 1 of 1