If you can ever get your hands on some classic Finnish WWII movies, I can warmly recommend the 1955 version of The Unknown Soldier (Tuntematon Sotilas) and Winter War (Talvisota) from 1989. Great action and great dialogue. Both can be found subtitled in English, though you might have to do some digging :-D
The Unknown Soldier tells a story of machine gun Company in a Finno-Russian Continuation War through 1941-1944. Väinö Linna, the author of the book, actually fought in the said war. The movie has a nice flow to it, and the characters become more and more lovable. Another version of the movie was made in 1985, and the newest is just making it’s way out. I wouldn’t recommend the 1985 version, especially if you haven’t watched the original first.
The Winter War is still a bit more factual and relies mostly on the action sequences, and less on characters. The book was written basing on diaries and interviews of those who fought in the Winter War.
Anyway, if you ever come across these movies, be sure to check them out!