The only fair way to judge this movie is in its own context, now more than 40 years old. At the time, Harryhausen's stop-action creatures were the height of special effects. The giant crab, bee, and other creatures could not have been done any other way. Rays from "electric gun" may have been scratched directly onto the film. Again, it looks unsophisticated to today's eye, but matches the rest of the movie very well.

For its time, though, this movie has a few fairly modern features. The one black actor had about as much of a role as the others, even though Jim Crow was still alive and kicking. There was a skimpy-skirted female lead with a habitual need for being saved. The other woman, however, was one of the more competent members of the group. She was used to a life of ease, but quickly showed her competence at handling support functions for the team, and under primitive conditions. Maybe she did "women's work", but she did jobs that needed doing and she got past her aristo background to do them. About the only complaint we ever heard was that her gun jammed at a crucial moment.

There's no high moral or deep art here. There is good fun. It's a little dated, but that is just part of its charm.