[broken_clock]

I recall this movie as “Five Million Years To Earth”. My experience watching it as a youngin was terrifying.

[Fai Mao]

Yeah, for some reason the title changed when it came to the US. Perhaps because it was part of a series.

Another one in the series that had its name changed was “Voyage to the Far Side of the Sun” I don’t know what that one was called in the UK

[Tijeras_Slim]

Same here.

[Getready]

I saw it in 1973....was actually a redo of a TV series in Olde England from the 50’s...nevertheless, the movie stayed in my memory since. Is an excellent, thought provoking, movie. Definitely needs a modern day redo. With minimal cgi or wokeness, or “spielberg like” over the top meaningless scenes.
It’s the insidiousness and the subtilty of the implications of the plot which is the star of the movie.

[V K Lee]

You’re correct. It was first seen as a different title here in the States; and the name similar to the Harryhousen flick.

[larrytown]

Same - it was one of those ‘movie of the weeks’ back in the ‘70s.