It's a comedy worth seeing again from time to time. I’m not knowledgeable enough about cinema history to comment on how groundbreaking this movie was when it came out—I wish I knew more, and I’m always trying to learn—but my understanding is that it may have been among the earliest American satires in the vein of Monty Python, a popular English comedy troupe, and “National Lampoon Animal House,” which had recently been released. The story, directed and written by Jim Abrahams and the Zucker brothers, centers on a disastrous domestic flight after nearly everyone—including the pilots—becomes ill from bad fish. Some jokes land better than others, but the humor is smart enough to avoid being simply silly. The scene where the pilot attempts to flirt with a young girl is probably the most talked about part of the movie, though I don’t find political correctness particularly important and didn't have any issues with it. The writers also threw in some sexual jokes, but nothing struck me as truly inappropriate. The filmmakers assembled actors known for their comedic talents who hadn't always had a chance to focus on comedy or had not previously appeared in films. This includes people like Peter Graves, Robert Hays, Julie Hagerty, Lloyd Bridges, and Leslie Nielsen—it’s remarkable how much we associate him with comedies now, but he hadn't been in many before this film. The cast seems to be genuinely enjoying themselves, which suggests they all have fond memories of working on the project. From a technical standpoint, the movie is well-made, with good cinematography, props, and special effects.

Source on TMDB