Good options, i ll add, Copolla have a great trilogy with The godfather but the best of him is Apocalyse Now, Quentin and Kurosawa are my favorite Directors, Kurosawas i recomend you 7 Samurai, Quentin i recomend you Pulp Fiction, both are the most reconized movies; from Old Boy u recomend the Chan-Wook Park Version the good one :)
If u wanna see a new movie i recomed:
Gone Girl ( Same director from Fight Club)
Grand Hotel Budapest ( Wes Anderson)
Birdman ( Same director from Babel)
Relatos Salvajes ( Is produced by Pedro Almodovar, on english can be called "Wild Tales" )
Spanish/ Latin America Movies/ Brazil
Hermano ( Venezuela movie ) <--------- I real like this movie because represents a lot of what is venezuela.
Relatos Salvajes ( Argentinian movie )
Libertador ( Venezuela movie )
Cidade de Deus ( Brazil Movie)
Amores Perros ( Mexico movie)
El Secreto de sus Ojos ( Argentina Movie ) <------- Real good one D:
Y Tu mama tambien ( Mexico )
Best Latin american movies by IMDb
http://culturacolectiva.com/wp-content/uploads/2014/01/La-mejor-película-de-cada-país-latinoamericano-según-IMDb.jpg
