This is now on Netflix. What an excellent movie! I’ve been down on the sci-fi genre lately as they’ve become endlessly more about the spectacle and ridiculous plots. This one works great. The technology is expertly made background, and is more often a hassle than a wow-feature. The characters are great and believable, with excellent performances from the two leads and others. The plot is very tight, almost a lesson for other films on how to package plot devices, e.g. the early mention of the ‘unusual prisoner execution’ which is never actually explained / resolved but is alternatively book-ended quite neatly at the end. Recommended.