Most Helpful Guy
It depends on the movie; it's just like Albert Einstein said:
""An hour sitting with a pretty girl on a park bench passes like a minute, but a minute sitting on a hot stove seems like an hour." xD
For example, "THE GREAT ESCAPE" (1963) is a movie --- nearly 3 hours long --- about a bunch of Allied prisoners of war trying to escape from a German prison camp during the Second World War. But it definitely doesn't feel like 3 hours; it's probably one of the best-paced movies I've ever seen in that sense!
Most Helpful Girl
Not really, the length doesn't matter. If the movie is really terrible and I'm bored, it can be short and I'd want to just stop it. It's rarely happened, though. I have the extended version of the LotR trilogy, and other movies that I enjoy. I can watch it all the way through, so long as I'm interested.1