Hey, that’s from North by Northwest .
Spellbound and Vertigo are the source of the plot's main inspiration, but North by Northwest, The Birds, Dial M for Murder and many others are also referenced.
It's difficult to satirize an artist--at least in the revue fashion of Mel Brooks--because you're relying on motifs and iconography instead of clichés and conventions, and it's difficult to satirize Hitchcock because he did it himself with North by Northwest , a post-modern send-off for his most formulaic tendencies.
Smartly spoofing scenes from the likes of Psycho, North by Northwest, The Birds and Vertigo, right down to Hitch's famous camera angles, High Anxiety is my personal favorite in the Brooks' canon.
He takes such key Hitchcock moments as the shower scene from " Psycho " (1960), the climbing scene from " Vertigo ", and the shooting in "North by Northwest" and he clobbers them.