Ali McGraw & Steve McQueen did the film "The Getaway" and fell in love. McGraw left her husband, Bob Evans, head of Paramount Studios and ran off to be with McQueen. She and Evans remain great friends. That's Hollywood folks.
Steve McQueen and Ali MacGraw."Even at the height of their affair, McQueen — fuelled as always by coke and beer — couldn’t resist having sex with groupies on set. He made no attempt to conceal any of these liaisons from Ali, but she grimly clung on.