Two fundamental flaws
I think that Heaven's Gate has many good qualities (cinematography, music), but there are two huge flaws that I think killed the film.
1. It's way too long, in either the two-hour or three-hour version.
2. The subject matter is too esoteric.
It's a shame, because it could have been a hit. If nothing else, at least Heaven's Gate has become a talking point, almost 35 years later.
Snoopy is one cool cat...although he's a dog.