Sandra Bullock Cancels Her UK Premiere Amidst Reports That Jesse James Was Unfaithful!

We really hope these reports of Jesse James cheating on Sandra Bullock are not true — but he just canceled his Twitter account!

The U.K. premiere of Sandra Bullock‘s film The Blind Side will be missing one thing — its lead actress.

Sandra released a statement via Warner Bros. apologizing for the cancellation which reads: “Due to unforeseen personal reasons a trip abroad to support The Blindside has been deemed impossible at this time. I apologize for any inconvenience this may have caused and thank you for your continued support of the film.”

PRInside.com reports the premiere, scheduled to take place in London on Tuesday Mar. 23, “has been axed – because the film’s star Sandra Bullock has pulled out of attending.” A Warner Bros. spokeswoman said, “Because Sandra isn’t coming any more, there isn’t going to be an actual premiere. She isn’t coming over, no. I don’t know the reason why. We just had the message relayed to us this morning.”

But the reason Sandra is not going to continue doing press events seems obvious — a salacious new report in In Touch Weekly quotes tattoo model Michelle McGee, who claims she had an 11-month affair with Sandra’s husband of nearly five years, Jesse James. And while we really hope these claims are not true (we love Sandra and Jesse together!) on the heels of her big Oscar win, this must be such a major blow to the actress.

Jesse deactivated his Twitter account Mar. 17 amidst rumors of his infidelity. Jesse is known to tweet often on his account ‘Frankyluckman’ so it’s definitely shocking that he took his entire page down.

Could this really be true?! Well, Michelle does seem to have a lot of history with Jesse — and evidence like text message and e-mails to back it up. Michelle claims that she and Jesse first contacted each other in April 2009, when she was looking for a modeling gig with Jesse’s company, West Coast Choppers. At the time, Sandra was in Atlanta, filming The Blind Side, which landed her an Oscar win for Best Actress. “From the start, Jesse wanted to meet Michelle, and it was never about business,” reports the mag.

Here are some of Michelle’s racy and salacious claims about her intimate relationship with Sandra’s husband!

Michelle says that when she asked about Sandra, Jesse told her “She doesn’t live here. She has a house in Austin. She is filming, and I can’t talk about it.”

They had sex three times the first night they were together, Michelle alleges.

During the MTV Movie Awards in June, Michelle says they watched Sandra on TV together

Michelle claims Jesse “didn’t wear underwear or condoms.”

Jesse liked it when she wore patent leather pumps to bed “because they ‘made this sound’ during sex.”

What’s most sad about this story, is that Sandra has gotten so close with Jesse’s kids from two previous marriages, Chandler, 14 Jesse Jr. 11 and Sunny, 5. She was even out shopping with the girls the day after her big win. And while, again, we really don’t want to believe that Jesse could cheat on Sandra, Michelle does fit his type. He was previously married to porn star Janine Lindemulder and Karla James.