Great Movies DESPITE Bad Acting?

Ummm... too many to list. 😉

Tarantino films where Tarantino has a role?

I also would say Keanu Reeves in both Much Ado About Nothing and Bram Stoker's Dracula.

Sofia Coppola - Godfather 3

KATE CAPSHAW IN TEMPLE OF DOOM

How about Fateful Findings, The Room and the Birdemic series to start with?

Go down the rabbit hole of these ... special movies ... if you wish. I have to some degree and don't regret it one bit.

Terrorvision (1986)

There is a Canadian film called "Cube" (1997). It's a great and smart thriller, but pretty much every actor could take an acting lesson.