Well, it really depends on what kind of films in these countries you're looking for. All major countries went through different phases, but I'd start here: for Italian, the obvious like Fellini, De Sica, Rossellini, Wertmuller, and more recently Tornatore. If you like the "Nouvelle Vogue", try the "New German Cinema" a movement in the late 60's; early 70's which included, essentially everything from Fassbinder, Herzog, and the early films of Wenders (anything before "The End of Violence")