3. Northern Lights
The movie Northern Lights has two married stars in lead role, i.e. LeAnn Rimes and Eddie Cibrian. Eddie was married to Brandi Glanville and LeAnn was married to Dean Sheremet. Still, during the shoots of this movie, both came into relationship.
2. Bad Teacher
These two well known stars Cameron Diaz and Justin Timberlake were said to be the best couple of Hollywood. But until they starred in Bad Teacher. We don’t know what happened between them but it is said that both were out of each other when the movie was in production mode.