-From, "DA UOMO A UOMO" (Italy, 1967)
-"DEATH RIDES A HORSE" or "AS MAN TO MAN" (USA)
-"DE HOMBRE A HOMBRE" (Spain)
-"LA MORT ETAIT AU RENDEZ-VOUS" (France)
-"A Morte Anda a Cavalo"(Brazil)
-"D'homme à homme"(France)
-"Die Rechnung wird mit Blei bezahlt" and "Von Mann zu Mann"(West Germany)
-"Hämndens Timme"(Sweden)
-"Kosto Odottaa"(Finland)
-"Oi 5 Simademenoi tou El Viento"(Greece)
"As a child, Bill witnesses the murder of his family by four robbers. Fifteen years later, he embarks on his revenge..." Starring Lee Van Cleef and John Phillip Law.
-imdb.com
The main title theme was used again in "KILL BILL, Vol. 1" during the House of Blue Leaves sequence, as well as the trailers.
See also:
ENNIO MORRICONE -"Guitar Nocturne" (1967)
http://www.youtube.com/watch?v=d4sEypY-4YU
ENNIO MORRICONE -"Mystic and Severe" (1967)
http://www.youtube.com/watch?v=MqD6gHLDqYc
ENNIO MORRICONE -Death Rides a Horse/ "Anger And Sorrow" (1967)
http://www.youtube.com/watch?v=t8L2i1ggcuU
ENNIO MORRICONE -"Death Rides a Horse, ver. 5" (1967)
http://www.youtube.com/watch?v=qAcAuxT_C-o