Visible crew/equipment: In the opening sequence, Sammo Kam-Bo Hung is scavenging the dead soldiers (with one hilarious twist) - however, when he is holding the ring, in his sunglasses you can see several very much alive crewmembers standing. (00:02:45)
Continuity mistake: When Rachel goes to the "group", her bag is multi-coloured; when she comes home from the "group", her bag is different, it is now just black.
Continuity mistake: After the car accident, a man in a black hat and coat runs up to the left-side rear window of Patton's car, taps on the glass, then peers into the car. The camera angle changes to show the Jeep arriving and we see the same man in black arrive again to repeat all the same moves exactly. (01:13:30)
Revealing mistake: Vanity's stunt double is obvious as she drives the Corvette under the semi truck's trailer.
Other mistake: Lakella seems to disappear from the movie after the battle.
Revealing mistake: When Louise pulls off Joel's trousers, we see that he is wearing briefs under his boxers.
Continuity mistake: In the wild stun where Rambo Chow jumps through the cracked windshield into the moving van, in the first take the stuntman doesn't quite land right into the windshield (in fact he hits the frame in a way that could possibly break a hip) and his body bends awkwardly, but in the next shot you see him slide in smoothly. (00:03:15)
Continuity mistake: Torok the Troll wears a magic silver ring which allows him to appear in the form of Wendy Potter. However after Wendy's mother tells her about the orange juice, when Wendy touches the cold bottle of milk in the fridge she grabs her arm in pain and we can see both of her hands, and she's not wearing that magic ring.
Factual error: The movie as the opening captions say, is set in Melbourne, Australia, 1978. However when Sam at the beginning of the movie drinks the milk and moves to the other room where the TV is, he passes by a poster (a communist party poster, the Italian communist party, strangely enough) that was designed only in 1981. (00:09:25)
Continuity mistake: Liana is barefoot most of the movie yet at the chief's village she's shown wearing black ankle socks.