Sometimes in Hollywood, a co-star becomes more than a colleague, and a film set becomes the backdrop for a real-life romance that attracts far more attention than the project itself.
When either person is married, however, the story can become complicated, with new relationships drawing scrutiny over their timing and the circumstances surrounding previous breakups.
Several Hollywood couples have faced these questions, and while speculation doesn't always tell the full story, interest in their relationships has endured long after filming wrapped.
