Michael Lindsay-Hogg’s film adaptation of Waiting for Godot.
An old one (1964) was Cheyenne Autumn, a movie that Mad Magazine parodied as Cheyenne Awful. Two and a half hours (which was an eternity for a movie back then) of people trudging from one place to another. While the subject matter is compelling, the movie is far from it.
Very different from the stage play, in which much happens.
Another oldie that I need to recall with a little help from the Wiki. Some battles and ambushes, people killed, a duel to the death, etc. It may be a boring, turgid film, but “nothing happens” is not a good description.
I was 17 when I saw it, so there’s that.
Vivian Mercier’s assessment was that “nothing happens, twice.”
Yeah, I saw it in a revival theater and it has too much exposition, too many scenes about the rotten administration of Indian Affairs, and too much deification of the Indians to rise above “a slog”. One of Ford’s rare misses, probably due to caring too much.
I almost regret not excluding movies that consist primarily of two characters talking. Almost.
I think Gerry might qualify: Matt Damon and Casey Affleck get lost in the desert and wander around for 100 minutes. The 7-minute scene of them hiking across a dry lake bed into the sunrise is either mesmerizing or incredibly boring depending on your interest level.
Don’t all of Jim Jarmusch’s films fall into this category?
Unfortunately, it spoils the plot by including a murder towards the end. Otherwise an almost perfect “nothing happens” movie.
I saw it after Roger Ebert gave it a thumbs up. If you exclude sex from things happening in this kind of movie, pretty much all of them would qualify. Except for Flesh Gordon that is.
I think some folks might put Sentimental Value in that category, though I strongly disagree. l thought it was a beautiful film that won an Oscar for best international feature film and a bunch of nominations for acting and for best director. It’s just very subtle and understated.
Even the sex (such as it is) in Emmanuelle is boring. 
Watching most sex is boring. Doing it isn’t.
Someone should come out with a Readers’ Digest condensed version of porn movies. It would be far more efficient.
I’ve always just fast-forwarded through most of the dialogue. 
I came into this topic specifically because I knew this would come up…
The entire point of My Dinner With Andre is that Wallace Shawn’s character is changed by the conversation. At the beginning, he is unconfident, deferential, and self-wallowing. By the end of the movie, he has a newfound confidence because the conversation exposed that The Great Andre whom he had built up was a very flawed and strange person. He is proud of himself for not getting bowled over and is optimistic for the future.
It has been a few years since I have seen it, but I recall Everything Must Go starring Will Ferrell being nothing more than 90 minutes of a guy sitting in a lawn chair on his front lawn feeling sorry for himself.
Hmm, I want to say The Father, but there’s an emotional arc. Even if the overall plot is just “man with dementia lives with dementia”.
I remember that one. Really boring.
How about The Company of Strangers?
This isn’t a movie consisting of two characters talking.
It’s a movie consisting of eight characters talking! (oh, and one tour bus breakdown.)
I was thoroughly bored when I saw this in my twenties. Perhaps I would like it more thirty years later.