Just so you know, Once Upon a Time in the West is a Sergio Leone western. I think the reason you don't see it as much as some of the Clint Eastwood ones is that it is a longer movie and doesn't fit so well into the typical 2 hour TV movie time slot.
I seem to remember reading a story about Fonda showing up for the first day of work with a beard and brown contact lenses. In short, he had made himself look more like the typical movie villain. Leone's response was basically: "No, no, no. I *wanted* the clean-cut, fair skinned, blue eyed look for the viscous gunslinger this time. That was why I hired you in the first place."
Anyway, I know that some people don't care for the "spaghetti westerns", so I figured I would let you know that.
So, have you seen Charade with Cary Grant and Audrey Hepburn (among others)? If you haven't, then don't ask what bit of free association brought it up. (Although I still can't believe that someone thought it was a good idea to remake a Cary Grant / Audrey Hepburn movie with Mark Walburg in the Cary Grant part.)