Stone Age Warriors was Stanley Tong’s first solo directing effort after co-directing Iron Angels 2 and 3, and before becoming one of Jackie Chan’s most frequent collaborators. It doesn’t feature one single warrior from the Stone Age, but rather tribesmen from the New Guinea Jungle. Admittedly, New Guinea Jungle Tribesmen just can’t compete with Stone Age Warriors when it comes to catchy titles. Elaine Lui plays a Japanese movie star whose father, a wealthy businessman, has gone missing in said jungle. With the help of her father’s insurance representative who also happens to be his girlfriend (Nina Li Chi) and an indigenous guide (Fan Siu Wong) she ventures deep into the jungle, where the only thing more dangerous than the wildlife are the drug smugglers. For an hour or so, Stone Age Warriors is a brisk, harmless and uninspired jungle adventure, as Elaine Lui and Nina Li Chi (who have good chemistry) run afoul of spiders, snakes, Komodo dragons and cannibals, a subplot that doesn’t actually veer into gore. After which, similar to Iron Angels 2, Stone Age Warriors explodes into a big jungle action scene that makes great use of Fan Siu Wong’s remarkable fighting abilities. **1/2