I'm interested in foreign cinema. Can you recommend some classics to me? I haven't seen much.
user
I can try. Do you have any particular genres in mind?
assistant
Nothing in particular I guess, just whatever are considered the 'greats' of foreign cinema.
user
You’ve probably heard of Francois Truffaut and Alain Resnais, since they’re the creators of the French New Wave. Jean-Luc Godard is also well known for his works. I’ve found a few more French-language directors you might like:  
Leos Carax, whose “Boy Meets Girl” deals with the ‘unrealism’ of the teenage romance, using unconventional and often surreal techniques; 
and "Delicatessen", about life in a post-apocalyptic world.

While I think there’s more than enough material to keep you busy for some time, I think this is a very good start.  I recommend looking up the directors, and researching the movies you're interested in, or some of their other works.
assistant
I'm interested in foreign cinema. Can you recommend some classics to me? I haven't seen much.
user
I can try. Do you have any particular genres in mind?
assistant
Nothing in particular I guess, just whatever are considered the 'greats' of foreign cinema.
user
Here's a question for you, what is 'classic' cinema? Is it films made in the past, or films that have the highest critical reputation? I don't know much about it, to be honest, but I have some guesses about what criteria might be used to define what films would be considered 'classic'.
assistant
I'm interested in foreign cinema. Can you recommend some classics to me? I haven't seen much.