Do try and find Alexander Nevasky. The soundtrack alone is rather good, but the film is something special. The propaganda isn't always subtle, ( a chorus of 'Arise ye Russian people, the Germans are coming!), but don't let that put you off. It even has some basis in reality....

The worst that I remember is probably a Rambo (part 1, 2 17, doesn't matter) A total lack of plot and acting ability must count for something.