Yeah, One Million B.C. is a Harryhausen effort. I like the idea of
that movie better than the realization. The stop motion on the little
dinosaur that attacks the village and the flying dinosaur stuff is
especially good. What holds this one back is the glacial pacing of
the storyline. They were going for atmosphere, but alas it gets dull
in the last half despite the dramatic volcano eruption.

Dean