Harmless but dull old nonsense about a film maker using an active military base as the location for a terrible Sci-Fi flick.
The film maker is played by Sid James. He would have been 40 when this was made. I'm now sure beyond doubt that he was born with that same head and it was only below the neck that anything on the guy physically changed.
Can you imagine him as a baby with that face? Something, something breast feeding "Yak! Yak! Yak!"