[Anitius Severinus Boethius]

I can't remember the film, but:

Kid: You shot him in the back!

Gunslinger: His back was to me.

El Diablo with Anthony Edwards as the kid you quote and Louis Gossett Jr. as the gunslinger you quote.

[falfa]

Thank you! Having a senior moment there.

It certainly dates the film if Anthony Edwards was a kid, being that he is now folicly impaired.