Gunsmoke Story
This is a repost from a long time ago but it is still one of my favorite stories. It comes from an article in TV Guide.
A TV director said the most memorable moment in his career was the day he took over as the replacement director for the hit TV show Gunsmoke. He had been warned that James Arness was difficult to work with and had no sense of humor. He had met James Arness only a couple of times and didn't know him very well.
This was the first season the show would be filmed in color. On the first day of shooting they redid the show's memorable opening scene---Marshal Matt Dillon stepping out into the main street of Dodge City for a fast draw showdown with a bad guy.
The new director shouts "action", James Arness steps out into the street, the bad guy draws, Arness draws, shots ring out and James Arness sprawls backwards into the dust clutching his chest from which blood is apparently gushing.
I think the director said that at that moment he thought he might as well be dead too. He said he got along quite well with James Arness after that.