Project Hail Mary may not have used any green screens during production, but co-director Chris Miller has clarified that this doesn't mean there's no visual effects in the sci-fi movie. Still, he says that the aim was always to prioritize practical sets and effects, and the spaceship where most of the film's events take place was all real.
"Some clarification here: 'no green screen' doesn't mean 'no VFX'. There were, in fact, thousands of VFX shots in the film (2018!)," Miller wrote on Twitter.
