The Third Man is classic, classic noir. Between the on location shooting in Vienna, fantastic performances by Joseph Cotten and Orson Welles, and really distinctive cinematography, it's just stunning.
A Man Escaped. To quote Godard, "He is the French cinema, as Dostoevsky is the Russian novel and Mozart is German music". If you like simple, but beautiful films, watch Bresson. A Man Escaped makes all other prison break films, with their endless plot twists and convolutions, seem utterly pointless. Instead Bresson focuses on the character, the drama and the methodical process of breaking out.
The story depicts the machinations of a racist named Adam Cramer (Shatner), who arrives in the fictitious small Southern town of Caxton in order to incite white townspeople to racial violence against black townspeople and court-ordered school integration.
Also You Can't Take It With You. Now you've seen one Cary Grant and one Jimmy Stewart. To finish up you can get both of them with Catherine Hepburn in The Philadelphia Story.
Dead of Night
Modern times
The third man