Firecreek actually came out the same year OUATITW did in Italy. The similarities between the two movies is merely coincidental.
So, Leone had to wait to see movies in theaters just like any other slob? He had no industry connections, and couldn't even see a pre-release screening of a film by an actor he wanted to hire? Also, SL went to the U.S. in '67; maybe he saw it then.
When re-watching The Searchers again recently I noticed that there were certain bits of the great score that had a similarity with some of Morricone's score in West.
that was sung several times by Richard Harris in "Dundee" and appeared on that film's soundtrack several times, I don't know what it's called (it's not "Dixie" or "Bonnie Blue Flag", just FYI).
Hope some of you got to record this off TCM yesterday.