Is there any chains of movies within movies?

I think the concept of a “movie within a movie” is quite common, film characters are in the movie, watching another real movie. But is there any occurrence of a movie within a movie, and when you watch the same movie as the characters are watching, there’s a movie in that movie too?

I know I am bad at expressing myself, here’s what I mean; You watch movie A, and in that movie, the characters are watching movie B. You think that movie looks good and you turn it on, in movie B, the film characters are watching another movie, movie C. Maybe there’s a movie in movie C as well?

Sorry for poor explanation, I’ve been trying to google this but to little success. Do you guys know any chains of movies within movies within movies? Obviously the characters doesn’t have to be actively watching the film, just that it’s playing in the movie.

EDIT: guys i love your comments don’t get my wrong, but i wanted to mean real movies!! i don’t have any good example, but sometimes you watch a movie, and they’re watching another movie in that movie!! i think wall-e watches hello dolly, for example, if that makes it easier to understand! sorry for being a bad explainer!