Fun. Ticks all the boxes for the genre. Vicious lesbian guard. Showers. Mud wrestling. Escape. Revolutionaries. Third world setting. All the characters are different. It's made with energy. Star turns from Pam Grier, Roberta Collins. Sid Haig fun. The movie works. Stephanie Rothman had the film rewritten by Don Spencer - I wonder what her contribution was.
It's a shame she and Jack Hill seem to clash.