Eternal Sunshine

Joel: "I don't see anything I don't like about you."
Clementine: "But you will! But you will, and I'll get bored with you and feel trapped, because that's what happens with me."
Joel: "Okay."

Eternal Sunshine of the Spotless Mind may be the only film with Jim Carrey that I didn't either hate or find annoying. In fact, it was fabulous. If you are in a relationship and you are hitting that multi-year low and beginning to fantasize of moving on, rent this one together. Have tissues nearby.