You neglected to mention the most interesting aspect of this movie: the filmmakers were wholly inexperienced and untrained regarding how to handle dangerous wild animals. As a result, at least half the cast and crew were injured at some point during filming due to animal attacks, accidents, etc. Roar (film) - Wikipedia
The obvious Pulp Fiction and Mulholland Drive, and I'll nominate The Big Sleep, unique in that I like it although I have no idea what it's about. Apparently, the people filming it didn't really know what it was about, either, but I still find it thoroughly enjoyable.
Hope & Glory by John Boorman... reminds me a lot of Kenneth Graham's idyllic The Golden Age and Dream Days except instead of being set in Victorian England it's war-torn London during The Blitz... no anti-war cliches to be found, rather the kids revel in their school being bombed with euphoric shouts of "Thank you, Uncle Adolf!" and run rampant in the ruins of the city in a far more realistic manner than Clockwork Orange...
Bubba Ho-tep for me! Never could have imagined a plot twist like that happening. Truly unique fictional bio, drama, comedy, sci-fi and horror genre's all mixed in to one movie.
Synecdoche, New York I saw this film once, and as much as I didn't completely understand it, I thought it was a brilliant (and definitely unique) film. I keep meaning to re-watch it, but to be honest, the first time I saw it I was completely drained and depressed after seeing it.
I think, The Straight Story - kind of a David Lynch endorsed vehicle from 1999. Richard Farnsworth, Sissy Spacek, and the true story of a man, Alvin Straight, who travels by a John Deere mini-lawnmower from Laurens, Iowa, to visit his estranged, ill brother (played by the late Harry Dean Stanton)in Wisconsin. I was intrigued by this film from the off - the fact that it was a David Lynch film that was I think the only U certificate he's ever produced, plus the title of the film, which ends up being exactly what it is - a straight story about a guy named Straight, who lives up to his name. The cinematography is stunning, the kind of America you want to visit that's outwith all the touristy bits. His mates are a total hoot in the bar and at the local hardware store, but really, this is the most exquisite of road movies, at the most pedestrian pace. It's also my favourite film and I watch it a couple of times a year.
I think that Back To The Future 2 is a very uniquely odd movie. It's built on top of the first film and many scenes are intertwined with scenes from the first film. Time travel makes all this viable.
I like "The Straight Story", but I think it was VERY influenced by "Harry and Tonto" (which probably was influenced a bit by "Umberto D") I tried watching this one once, turned it off while they were in the car.
Ah, I see. Thanks for getting back to me. Looks like I can send messages now, but this site isn't letting me send a message to you. Mind trying again? Is there any way to get in contact other than through PM?
Gus Van Sant's Gerry -- Matt Damon and Casey Affleck get lost and wander wordlessly in the desert. The sunrise scene is long, weird and hypnotic:
Rainer Werner Fassbinder's "Chinese Roulette" for me. A masterful dissection of a disfunctional marriage, stressed by the breathtaking cinematography by the great Michael Ballhaus.
Did you ever see "The Castle of Purity"? It's a Spanish movie from the early 70s, with similarities. "Dogtooth" is more unique, or rather, more vulgar, but I think the latter is the best movie.
One of my favourites is "Lone Star." So many different relationship stories plus a murder mystery. I probably watch it a couple of times a year.