Nice gun and they did use a .357 for a lot of the video in the movie but Harry was supposed to carry a .44 magnum.
That's a nice barrel length for a car gun IMO. It can be carried but they do get heavy and trying to conceal one is tough. I have a shoulder holster for my 629 .44 mag (same gun as Harry only stainless and mine has a longer barrel) and the holster hangs out from under my shirt. Hmmm... Not sure that wouldn't print if I wore it.
I know one thing. That handgun will stop a bear in it's tracks if you hit the bear right (which isn't easy to do if a bear is charging you). But that's why I keep it around. I almost traded it off for a big profit at one time then I got invaded by bears. Now I'm glad I kept it.