There are a few possibilities:
* You might be thinking of a different year: There are several movies with "Cavegirl" in the title, but none from 2002.
* You might be thinking of a different title: Perhaps you're remembering a movie with a similar premise, but not the exact title.
Could you please provide more information about the movie you're looking for? For example:
* What was the plot of the movie?
* Were there any other details you remember, like the director or any other actors?
This would help me find the correct movie and provide you with the information you're looking for.