Reviews provided by RottenTomatoes
New York Times:
It is mostly fun for the way it cherishes movie styles and attitudes from the past.
The New Republic:
There is something touching and maniacal about the two-and-three-quarter- hour result.
The movie stretches on for nearly three hours, with intermission, and provides two false alarms before it finally ends.
The Western is dead - or so they tell us. Long live Leone's timeless monument to the death of the West itself, rivalled only by Peckinpah's Pat Garrett and Billy the Kid for the title of best ever made.
'Once Upon a Time...' now looks like an over-cooked mess of style, metaphor and reference.
If only the first 10 minutes of Sergio Leone's Once Upon a Time in the West still existed, this most hyperbolic of oat operas would still be acknowledged as one of the genre's greatest exhumations.