To find out that Harrison Ford hobbled through the entire movie with a torn ACL he got in the very beginning is crazy.
Worse yet, the movie had no ending when they started filming. They actually filmed the movie just about the way we see it because they needed time to complete the script or at least do what they could to finish the movie
But for a movie to turn out so good and so rewatchable it's kind of unbelievable that the entire filming of the movie was chaos, incomplete screenplay, unscripted yet hilarious dialogue made up by the characters on the Fly.
Most movies that are this fucked end up looking like it, but this movie is a classic. I wonder how many other movies were classic but were filmed this haphazardly