The visual effects company Double Negative, which worked on Inception, was brought back for Interstellar. According to visual effects supervisor Paul Franklin, the number of effects in the film was not much greater than in Nolan's The Dark Knight Rises (2012) or Inception. However, for Interstellar, they created the effects first, allowing digital projectors to display them behind the actors, rather than having the actors perform in front of green screens. The film contained 850 visual-effect shots at a resolution of 5600 × 4000 lines: 150 shots that were created in-camera using digital projectors, and another 700 were created in post-production. Of those, 620 were presented in IMAX, while the rest were anamorphic.