Can anyone list some movies that has to do with LSD/acid?

I’m doing a project with Flash and we had to think of a concept that we’re going to pitch.

Since my concept is about a world sort of like lsd trippy, I wanted to get inspirations from movies that has a subliminal message of lsd or some sort of trippy movie.

Like for instance I heard Alice in Wonderland had something to do with lsd or some sort.

So yea I was wondering for a list of movies that’s trippy like and lsd to get my inspirations flowing.