Scenes you do not understand the purpose of in films.

Every toilet scene in films is 100% necessary.

Would you say that about Jeff Daniels shit scene in Dumb and Dumber?

Saw the opening scenes of a movie recently where the cinematographer was actually focused on a plumber's crack (and yeah, it was a broad, fat ass involved) then slowly panned the camera into what surrounded it. It was a wtf moment for me.

Sex scenes that seem to go on forever. Like, we get it.

In House of Gucci (2021) they put much emphasis on the fact that Rodolfo (a side character that died halfway the movie) used to be a movie star, which was mentioned and shown in several scenes. There's no significance of this, just padding an already overlong 2 hours and a half movie.

Filmmakers like to make (unecessary) nods to film and film making in their movies. Like, we get it, you like cinema that's why you're in the business of making movies. Jeez.

2/ Outro Scenes, when the characters look off-screen as the camera lingers and the music builds up. CUT to Commerical.

Why do we see wives/mothers making massive breakfasts that no one eats? And they do it over and over again especially in TV shows. The husband comes down grabs a slice of toast and sip of coffee, the kid might have a bowl of cereal and there is this massive spread sitting on the table.

IIRC Jane Fonda was the first to do this in the original "Fun With Dick And Jane."