Aliens From Inner Space (1983)

An incredible look at cephalopods – squids, octopi, and cuttlefish, from the Wildlife on One series. Filmed from Hawaii to the Gulf of Mexico, and using computers, scientists study the shape and color-changing abilities of these bizarre animals. Narrated by David Attenborough. (This film was shown on BBC as Season 12, Episode 2 of Wildlife on One. This listing is for the 16mm film release.)

Unfortunately the movie Aliens From Inner Space is not yet available on HBO Max.