As was mentioned in this thread, My Cousin Vinny is sometimes used in law school classrooms due to its accuracy about courtroom procedure.
A few years back I told a psychology professor friend about how Fight Club so accurately portrayed dissociation. She watched it, and has since made it required viewing in one of her classes.
We watched a clip of Burn After Reading in my public management class last year, and we had a movie night to watch Charlie Wilson’s War.
Not fictional, but to my class’ amusement, my foreign policy professor led off a discussion on NGOs by showing us a youtube video of the Play. Apparently, NGOs = the Stanford marching band.
My sister, when teaching freshman English, used to show Monty Python and the Holy Grail. Specifically, the trial of the witch. She used it as a launching point for talking about logic and argument for one of their papers.
My wife shows the “Do-Re-Me” song from The Sound of Music in her medieval music history course because it’s a really excellent illustration of how solfegeworks.
I just remembered: we didn’t see the whole film, but (again, in Property Law), we got an interesting take on the Rule Against Perpetuities from watching an excerpt from Body Heat.
We watched Contact in my low-level uhm…shit, what class do you learn about the different types of arguments and falsehoods and stuff? I am having a brain fart.
I think the thing we were to be learning was Occam’s Razor.
We also read The Name Of The Rose, which is also a movie, but we didn’t watch the movie because the book was so incredibly long that the movie obviously left out some of the finer points.