This is the only movie so far in the “Retro SciFi Movie of the Week” series that has a black character in it. I had to come all the way up to the 21st century to find it. So this film is not very “retro”, although the original story is from the mid-20th century.
Black people are even more under-represented in science fiction films than they are generally in Hollywood.
Note: Although Nichelle Nichols (as Uhura) was a character in Star Trek, in the particular episode featured here in this series, she only had a bit part. (Plus that one was not a movie, it was TV.)