Here is a list of some popular and critically acclaimed sci-fi movies from 2020 with a brief summary:

• “Tenet”: A secret agent embarks on a dangerous, time-bending mission to prevent the start of World War III.
• “The Wandering Earth”: In the far future, the sun is dying and Earth’s only hope is to launch massive planet-moving engines and migrate the planet to a new star system. However, the engines malfunction, and a group of brave astronauts must go on a dangerous mission to save humanity.
• “The Invisible Man”: When Cecilia’s abusive ex takes his own life and leaves her his fortune, she suspects his death was a hoax. As a series of coincidences turn lethal, Cecilia works to prove that she is being hunted by someone nobody can see.
• “Bloodshot”: After he and his wife are murdered, marine Ray Garrison is resurrected by a team of scientists. Enhanced with nanotechnology, he becomes a superhuman, biotech killing machine – Bloodshot. As Ray first trains with fellow super-soldiers, he cannot recall anything from his former life. But when his memories flood back and he remembers the man that killed both him and his wife, he breaks out of the facility to get revenge, only to discover that there’s more to the conspiracy than he thought.
• “The Vast of Night”: In the twilight of the 1950s, on one fateful night in New Mexico, young switchboard operator Fay and charismatic radio DJ Everett discover a strange audio frequency that could change their small town and the future forever.
• “The Platform”: The movie takes place in a large, vertical prison with multiple levels, where the inmates are fed by a platform that descends from the top level to the bottom, with those on the top levels eating well while those on the lower levels go hungry.
• “The Call of the Wild”: A sled dog struggles for survival in the wilds of the Yukon.
• “I Am Mother”: A teenage girl is raised underground by a kindly robot “Mother” — designed to repopulate the earth following the extinction of humankind. But their unique bond is threatened when an inexplicable stranger arrives with alarming news.

Please note that this list is not comprehensive and other sci-fi movies might also be considered as best, but these are some of the popular and critically acclaimed sci-fi movies of 2020.