I dont have a favorite, I have several I like a lot. The Longest Day, The Dirty Dozen, Kelly's Heroes, Patton, etc. All the old movies were more authentic with surplus Army props and tanks and whatnot. No CGI, great actors. They were less gory and more fun, too. Some newer movies are so realistic (Saving Ryan's Privates for instance) the stars of the show were severed body parts. Yak.