15 Lessons Movies Can Teach Us About Cheating

Lesson: When you're dissatisfied with your marriage, cheating becomes a coping mechanism.

Brad (Patrick Wilson, at maximum hotness) and Kate (Kate Winslet) feel unfulfilled by their spouses for different reasons. So when they strike up an affair that takes place during playdates, they spend a lot of time fantasizing about the future they could have together. But really, their relationship is just an escape from their marital problems.