"Card Carrying Red Shoes"

Last week, I watched "Card Carrying Red Shoes" and found what I think is a reference to Alfred Hitchcock's The Man Who Knew Too Much (1956), specifically in this conversation between Ivan and the Druvanian ambassador:

Ivan:  Now that we know the microfilm is safe, when do we dispose of boy?

Ambassador:  It will be at the very end of Natasha's solo.  You will take a gigantic leap into the air.  Just as your feet touch the ground, there will be a cymbal crash, and when that cymbal crashes, we will shoot him.

Ivan:  How did you ever think of such an intricate plan?

Ambassador:  I saw it in a movie.

The movie the ambassador refers to seems to be The Man Who Knew Too Much; a key element of the movie's plot is an assassination attempt on a prime minister during a performance at the Royal Albert Hall where the gunshot is meant to be disguised by a cymbal crash.

"Card Carrying Red Shoes"

According to Andrew Sandoval's The Monkees: The Day-by-Day Story of the 60s TV Pop Sensation, "Card Carrying Red Shoes" - the forty-first episode of The Monkees series (and the ninth of the second season) - was broadcast fifty years ago to-day (6 November 1967).  It was written by Lee Sanford, directed by James Frawley, and featured the song "She Hangs Out."  Sandoval describes the plot as: "A Druvanian prima ballerina involves the group in a plot to smuggle microfilm."