Beau is Afraid was the last one I recall. I think it was mostly the latter half of the movie where I started to get a bit confused and needed the ending explained to me.
What movies made you look up some kind of explanation afterwards? I feel like I have done it several times in the past for more surreal movies but can’t think of any other examples.
It can also be a TV show.
As soon as I read the title of this post, I knew that Primer would be one of the first comments.
You are not alone, that is the hardest time loop movie to wrap your head around.
Relevant XKCD
I’m gonna have to open that on a monitor.