Two different English language versions of this movie exist
The shorter US english language version uses James Coburn's own voice. The shorter version cuts out the entire 20min Bud Spencer intro.
What a shame that the longer english language version replaces Coburn's wonderful voice with that of a different actor, especially considering Coburn has no spoken lines the first 20 minutes. The longer version also uses completely different soundtrack music.
1 hr 32 min (92 min) Coburn's own voice
1 hr 53 min (113 min) version w/ Coburn dubbed by a voice actor
Link to watch shorter Coburn voice version here:
https://123movie.cx/movie/a-reason-to-live-a-reason-to-die-wv784qw/watching.html