A secretary breaks up with her boyfriend to seduce her boss, but he resists her wiles—until he discovers his wife in a tryst with a much younger man.
Forrest Gump
Titanic
Eternal Sunshine of the Spotless Mind
Casablanca
Her
The Curious Case of Benjamin Button
Silver Linings Playbook
The Notebook
Edward Scissorhands
(500) Days of Summer