Revealing mistake: In the early part of the chase scene, when the person hanging the banner swings into the pane of glass, you can actually see it start to shatter before he touches it.
What's Up, Doc? (1972)
Ending / spoiler
Directed by: Peter Bogdanovich
Starring: Barbra Streisand, Ryan O'Neal, Madeline Kahn, Kenneth Mars
Judy exposes Hugh Simon's plagiarism, winning back Howard's research grant. Eunice and Frederick get together and Judy disappears before Howard can say goodbye. She "just happens" to be on the same flight back to Iowa, Howard tells her he loves her.That's all folks!
Lindsey
More mistakes in What's Up, Doc?
Eunice: I'm not looking for romance, Howard.
Howard: Oh?
Eunice: No, I'm looking for something more important than that, something stronger. As the years go by, romance fades and something else takes its place. Do you know what that is?
Howard: Senility?
Eunice: Trust.
Howard: That's what I meant.
Trivia: Much of Hugh Simon's dialogue was ad-libbed by Kenneth Mars.