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

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        SUPPLEMENT TO THE POLARISAMERICA PROSPECTUS (B-2468-PRO (R 4/03))
                                DATED MAY 1, 2003
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THIS SUPPLEMENT REPLACES THE SUPPLEMENT DATED OCTOBER 1, 2003.

ALL REFERENCES IN THE PROSPECTUS AND THE STATEMENT OF ADDITIONAL INFORMATION TO
THE WORDS "PRINCIPAL ADVANTAGE" ARE HEREBY CHANGED TO "RETURN PLUS."

On October 1, 2003 the Nations Capital Growth Portfolio changed its investment
sub-advisers from Banc of America Capital Management, LLC to Marsico Capital
Management, LLC.

On January 16, 2003, the shareholders of the Nations Capital Growth Portfolio
approved the Agreement and Plan of Reorganization whereby Nations Capital Growth
Portfolio will transfer all of its assets and liabilities to Nations Marsico
Growth Portfolio in exchange for shares of equal value of the Nations Marsico
Growth Portfolio. On or about January 23, 2004, the Nations Capital Growth
Portfolio will be merged into the Nations Marsico Growth Portfolio.

The prospectus is supplemented as follows:

      On page 1 of the prospectus under the heading "STOCKS," remove the
      reference to the Nations Capital Growth Portfolio from under the
      sub-adviser Banc of America Capital Management, LLC.

      On page 9 of the prospectus in the INVESTMENT OPTIONS section, remove the
      Nations Capital Growth Portfolio from under the sub-adviser Banc of
      America Capital Management, LLC.

Date: January 23, 2004

               Please keep this Supplement with your prospectus.