If you loved Whatever Works, try Husbands and Wives
A bridge between a film you've already seen and one most people haven't. Husbands and Wives has roughly 3.7× fewer votes than Whatever Works — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Woody Allen, and they both carry the cerebral mood tag, and they sit in Comedy / Romance territory. If that's the register that drew you to Whatever Works, the second film will land in a comparable space — through a different lens.
What Husbands and Wives is
Woody Allen dissects his own life again, as only he can. Two married couples reassess their relationships after a sudden split rocks their social circle. It's hard to know who comes off worse, but it's probably Woody.

