Tim Peake doesn't tend to worry too much about scientific accuracy in space movies, despite having spent his share of time in orbit.
While many experts in their fields are critical of fiction's desire to embellish and distort, Peake told Yahoo that he is 'there to be entertained'.
He has now made his own journey into the world of sci-fi movies with a cameo as the voice of mission control in Pixar animation Lightyear, in which Chris Evans plays Toy Story character Buzz.
Lightyear is in IMAX and UK cinemas from 17 June.
TOM BEASLEY: I guess, when you got involved, did you have any role in consulting on the space elements of the story?
TIM PEAKE: No, not specifically. But when I went to the studios at Shepperton and I saw that, I was talking to the team there and just saying, wow, you really-- this is brilliant, that's absolutely correct and accurate and seeing other elements of just the more mundane things about living in space and the feelings of weightlessness.
And just, it's the little things about always paying attention to whether they're in a vacuum environment or a pressurized environment with the helmets down, helmets up, weightlessness versus gravity. And everything is accurate and correct. And it's that kind of attention to detail that really gives authenticity to the movie.
TOM BEASLEY: Well, I wanted to ask, like, generally, can you enjoy space movies? Or are you looking at them and picking things out that they've not quite done right?
TIM PEAKE: Yeah. No, I always go into a movie thinking, it's a movie, I'm there to be entertained. I don't really worry so much about the science fiction. Perhaps part of that's a defense mechanism because I want to relax and enjoy it. But I also think that what's the point in picking things apart. Movies are supposed to take you to a place where you enjoy it, you have escapism, and you can immerse yourself in the story. So it's nice when the science is correct. But if it's not quite right, it doesn't really bug me too much.
TOM BEASLEY: Is there a movie, aside from "Lightyear", that you think really gets it right and really captures what it's like to be in space?
TIM PEAKE: Well, I think "The Martian" is brilliant, mainly because Andy Weir, really, he kind of is a bit of a geek and focused on the science behind how you would really live on a planet by yourself. And so I think "The Martian" is very true to science. And we've already mentioned "Interstellar" taking on concepts of wormholes, and gravitational time dilation, of black holes and event horizons. So that was really brave to be able to bring that to an audience as well.