I would recommend seeing:

Primer

The Incredibles

Hero

Sky Captain and the World of Tomorrow

Before Sunset

Eternal Sunshine of the Spotless Mind

Harry Potter and the Prisoner of Azkaban

Hidalgo

Napoleon Dynamite

Spider-Man 2

Movies I’m looking forward to seeing:

The Five Obstructions

The Life Aquatic

Tokyo Godfathers

A Very Long Engagement

The Phantom of the Opera