My favorite line from the movie was right after the Navajo girl, Little Moonlight, was left behind in the town as Josie and Lone Watie had to make a hurried escape following the shootout with the Union soldiers.
Lone Watie: "Well, I guess we ain't gonna see that little Navajo girl again."
Josie: "I guess not. I kinda liked her. But then it's always like that."
Lone Watie: "Like What?"
Josie: "Whenever I get to likin' someone, they ain't around long."
Lone Watie: "I notice, when you get to dislikin' someone, they ain't around for long neither."
Seriously though, as far as weapons go, I think it would have made more sense for Josie to have a pair of .44 army revolvers than those huge Walkers, which were never meant to be belt pistols -- would have been a lot more realistic, as he was supposed to be a fast draw artist, and a huge, long, overweight cannon like the Walker is hardly the gun such a pistoleer would choose if he wanted to be fast. (Indeed, in the fast draw scenes against those same soldiers mentioned above, and the bounty hunter he kills in a later scene, you see he actually does leave the right hand Walker in its holster, and prefers a third gun -- an army model carried cross draw fashion in his belt.) The author of the book "Gone to Texas" only wrote "Colt .44" as Josie's guns too. But I suppose that Clint had established a persona, as the Dirty Harry actor, as an action hero who had to have the biggest, most powerful handgun out there, so they carried that over to give him Colt Walkers.