There are movies with scenes in which a character is watching another actual movie, where by "actual movie" I mean a movie existing in the real world.
For example, in I Am Legend (2007) the protagonist watches Shrek (2001) at home. Another example is A Futile and Stupid Gesture (2018), with the protagonist watching Airplane! (1980) in theater.
I wonder if there is a movie in which a character watches a movie in which a character watches a movie.


