Nolan really said what if we put a dream inside a dream and then charged you fifteen quid to be confused.
Fun fact: "The rotating hallway fight used a real 100-foot corridor built on a giant motor, with no CGI."
The killer literally rings you up for a chat first, which is weirdly polite for a slasher.
Fun fact: Drew Barrymore was originally cast as the lead but asked to play the opening victim instead.