This weekend, astronauts aboard the the worldwide Space Station were treated to a special screening of the film, which stars Matt Damon as an astronaut that ends up stranded on Mars when his mission goes awry.

John Logsdon, a former Director of the Space Policy Institute at George Washington University, insists Damon’s character should have been depicted as hopping on the planet rather than walking because the gravity is one-third that of Earth.

“The sand storm is inaccurate too”. To slow a vehicle carrying a significantly heavier payload through the thin Martian atmosphere and safely land it on the surface is a significant challenge. Listing them feels imperative because much like every character they play is integral to the mission, every role was crucial to the film. “The botanist might get very sick or, if he got home, die of cancer a year later”, he said. Scott Hubbard, professor at Stanford University in the department of aeronautics and astronautics, said the science behind Damon’s character growing food while awaiting rescue was credible. He’s supported by an incredible ensemble which consists of Jessica Chastain, Jeff Daniels, Chiwetel Ejiofor, Kristen Wiig, Sean Bean, Sabastian Stan, Askel Hennie, Michael Peña, Donald Glover, McKensie Davis, Benedict Wong and Kate Mara.

The movie marks Ridley’s fourth venture into sci-fi, following Alien, Blade Runner and Prometheus.

The Martian hits United Kingdom cinemas on September 30, 2015.