If you loved The American President, try Being Charlie
A bridge between a film you've already seen and one most people haven't. Being Charlie has roughly 4.5× fewer votes than The American President — 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 Rob Reiner, and they sit in Drama / Romance territory. If that's the register that drew you to The American President, the second film will land in a comparable space — through a different lens.
What Being Charlie is
Apparently someone thought Rob Reiner should helm a teen drama. Charlie breaks out of rehab and ends up in adult rehab. It predictably gets messy from there.

