Last Saturday, on Netflix, I watched Stowaway (2021) an engaging and compelling hard science fiction film by a new filmmaker, Joe Penna. The story, which has only four characters, is reminiscent of Gravity (2013) or Apollo 13 (1995), not only in how it involves a disaster aboard a small spacecraft, but in how it tries to respect physics as much as possible. (Apollo 13, of course, was a real story which made it a lot easier.)

It is, on both counts, also similar to The Martian (2015), in which it bears a third similarity — a connection to Mars. They differ, however, in that The Martian is about a guy trying to get away from Mars whereas Stowaway is about three people trying to get to Mars.

The disaster for them is the fourth person, the stowaway.

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