Last year NASA said it would allow two private astronaut missions a year [nasa.gov]. Now NASA apparently said it is working with Tom Cruise about filming a movie on the ISS [spaceflightnow.com].
Unless they want to go for that Blair Witch [wikipedia.org] cinematography effect, given the size to move around in the ISS and the need for a small film crew, I wonder if this would be a case where you'd actually prefer a green screen instead.