 According to actress Marley Shelton, "Rodriguez and Tarantino really co-directed, at least Planet Terror. Quentin was on set a lot. He had notes and adjustments to our performances and he changed lines every once in a while. Of course, he always deferred to Robert on Planet Terror and vice versa for Death Proof. So it's really both of their brainchild." Tarantino has stated, "I can't imagine doing Grindhouse with any other director in the way me and Robert did it because I just had complete faith and trust in him. So much so that we didn 't actually see each other's movie completed until three weeks before the film opened. It was as if we worked in little vacuums and cut our movies down, and then put them together and watched it all play, and then made a couple of little changes after that, and pretty much that was it."
