Yup, once again some engineerish observations of mine...

The screenplay & the film have two scenes on the Big Horn Mountains in 1969: the spoken lines are more or less inaudible in the film (at least to my 'waxed' non-native-speaker ears..

).
Ennis arriving to the campsite:
(Jack: You're late.)
Ennis: Look what I brought?
Jack: Beans.
Ennis: Gonna fix 'em just the way I used to.
Riding:
Jack: I wish we'd jump a coyote. I'd love to rope a coyote.
Ennis: I doubt I'll live to see that miracle....
These lines are from the book "Story to Screenplay"; please, feel free to revise them. Jack's first line is not in the book.
These spoken lines are 'restored' in some of the European dubbings/subtitlings: Italy, Germany and Spain. In Italian and Spanish they are audible as any other dubbed lines but in German the subtitles are the only 'clue', at least for the riding part.
Some visual proof:
Italian:

e
anche

German:

und

daß

auch

The last two pictures are with the hearing impaired / deaf and hard of hearing subtitles: the normal subtitles show nothing.
The French version 'restores' only some words (as far as I can hear) as do the English/French language subtitles on different DVD/BD's.
Vorrei vedere!