Rough Cut (2008 film)

Rough Cut Hangul RRYeonghwanun Yeonghwada lit. A Movie is a Movie is a 2008 South Korean action crime film. It is the debut feature of director Jang Hoon and based on an original story by Kim Kiduk. The film had a total of 1,307,688 admissions nationwide.

Since this film crosses back and forth between being an actual movie and a movie within a movie, the lines get blurred as to which the audience is watching. Examples

Source: Wikipedia