The western fast draw setup is as well known as the title sequence for Gunsmoke. Two men face off in the street, settle their stance, flex their fingers, and bet their lives on who is quicker. Great drama, but how do you make it fresh and different. There was the knife scene the Magnificent Seven and a lifelong secret about The Man Who Shot Liberty Valance, but Terror In A Texas Town outdid them all.
And for a nostalgic moment, here's Matt Dillon's famous duel, ending with a little film crew fun.
I ran across this movie clip in an interesting article by John Heath titled "Why Superhero Movies Aren't Like Westerns." I believe Heath makes some good observations.