Except Schofields are not double action revolvers, which is what the OP wanted to know -- best double action revolver movies.
The Johnny Depp movie about Dillinger that was out some time ago was also pretty good. When he breaks out of jail he opens an arms locker and it's just loaded with Colt revolvers.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.