Here is a link that has some tidbits about Teenagers From Outer Space...... Scarlet Street ran a very nice article on it several years ago.https://cultfilmalley.com.au/2019/08/07/tom-graeffs-teenagers-from-outer-space/The director Tom Graeff played the newspaper reporter Joe under the name Tom Lockyear......and he and David Love - the hero - were lovers in real life......and the dialog was prerecorded and the actor's talked back to the recording to save dubbing costs or something.....The making of the movie is more interesting than the movie - although I have kind of a soft spot for it...... because of the relationship between Derek and Betty. [most of the links in the article no longer work.....]