I had never seen Mel Brooks' High Anxiety (1977), but thought at first that I had when JeniferSF had been describing it to me. Well, no. I hadn't seen it, but I'm glad for the recommendation.
A loving tribute to the films of Alfred Hitchcock, High Anxiety is in the vein of other Brooks spoofs, which he made right up until just a few years ago. Probably what you want to know is which of the Brooks 70's era stable of supporting players does he recruit?
The movie stars Brooks himself, Madeline Kahn, Harvey Korman, and features an amazingly hilarious and quotable performance by Cloris Leachman. Seriously, I'm watching it again just to see if I can remember some of her dialog.
I don't really want to spoil it, so I'll just recommend it if you think you've seen Young Frankenstein and Blazing Saddles too many times and you're looking for something in a similar vein. It doesn't quite reach those epic heights (no Gene Wilder, perhaps?), but it gets the job done.