High Anxiety (1977) is a comic farce and a parody of, among other things, Alfred Hitchcock movies. Unfortunately, it has not aged as well as the Hitchcock movies, despite a number of individually funny bits.
I think it has to do with the lack of a serious undertone to the movie. Subjects include psychotherapy (at “The Institute for the Very, Very Nervous”), Hitchcock’s The Birds, ineffectual personal servants, dominatrices and submissives, and others, but none are really subjects of vital interest. Charlie Chaplin also used comic farce, but his subjects included the submission of workers to their corporate masters, the blindness of love, etc., subjects that are either timeless, or seem nearly so.
All that said, there are parts which still made me laugh out loud. If you happen to stumble into this flick, you will find it entertaining. But I fear it doesn’t work as well as it used to.