No one is above Clint, IMHO, when it comes to the number of entertaining movies acted in/directing by. A number of great films have already been mentioned by other posters yet the list goes on: Was the awesome Unforgiven mentioned? High Plains Drifter, Outlaw Josey Wales, Hang 'Em High ("when you hang a man you better look at his face"). Beyond the original Dirty Harry (great flick) there was the very good Magnum Force ("a good man always knows his limitations"). Others are Thunderbolt and Lightfoot (scene in the car with the Rabbits), Play Misty for Me, Letters from Iwo Jima, Firefox, Pale Rider, Beguiled (pass on the mushrooms!).....I also liked Escape from Alcatraz (for what it was). I'm sure I'm missing others.
Also, to another point, a good war movie done well is always, IMHO, a good film to watch. "Compared to war, all other forms of human endeavor shrink to insignificance". I think it's an appropriate genre for an NFL football team to watch together. Plus I just can't see BB and the Patriots getyting together to go see the Hunger Games, a Jennifer Aniston Movie, the 40 Year Old Virgin, or something similar to Downtown Abbey.