NEW YORK -- Amid reports that she's left her husband, Sandra Bullock has canceled her appearance at the London premiere of "The Blind Side" almost two weeks after winning a Best Actress Academy Award for her performance in the movie.

The Web site people.com is reporting the actress has moved out of the home she shares with her husband,  TV personality Jesse James.

The actress left the Southern California house she shares with James just days before a report of infidelity by James surfaced, people.com reported, citing an unnamed source.  Bullock, 45, left on Monday, the Web site reported.

Published reports said that James was having an affair with tattoo model Michelle "Bombshell" McGee, who claimed that James told her his marriage to Bullock was over.

"I would never have hooked up with him if I thought he was a married man," McGee told In Touch Weekly. "He gave me the impression they were separated."

Bullock and James, 40, met in 2004 during a tour of the set of the Discovery Channel's Monster Garage, in which James starred.

The couple married in July 2005.

Bullock in a statement released by Warner Bros. UK that she can't attend the event for "unforeseen personal reasons." She went on to apologize for canceling her commitment and to thank people for their support of the film.

The London premiere is scheduled for Tuesday.

-- The Associated Press contributed to this article.

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