Revealing mistake: When the Rangers kick Oozemen's ass, the pink Ranger starts off with the "You guys make me sick sick sick -kick". While all Rangers are fighting, the blue one is just standing still next to the camera. You can see his shoe in the in the lower right corner waiting for his entrance. (00:22:30)
Continuity mistake: At the end of the first scene (skydiving) Bulk and Skull land in a construction site. A worker goes over to them and starts talking. At this time the guys still have their parachutes on. It then cuts to the worker and back to them and not only are the parachutes off, they are nowhere to be seen. (00:07:10)
Factual error: Various Sydney landmarks can be seen throughout the movie (although the Centrepoint Tower and the Monorail play major roles). There are also some cars that have right-hand steering wheels despite the story being set in California, and some Australian model traffic lights (foot-long black cover with a grey pole) can be seen when the Scorpion bot destroys a car in front of the rangers. (01:06:00)
Other mistake: When Ivan Ooze gives out those slimes to the kids, that boy is at the very back of that big crowd. As Ivan Ooze starts giving them out, it switches to the boy and he already has some slime, but it would have taken a few minutes for him to get one. (00:42:00)
Continuity mistake: During the fight scene with the Ooze men, Rocky (Red Ranger) and Adam (Black Ranger) jump down to a lower level of the parking structure landing with Rocky at the left of the screen and Adam on the right. Soon after, several Oozemen jump after them, but when they land Rocky and Adam have switched sides. (00:23:50)
Continuity mistake: When the Rangers are receiving the "Great Power" from the temple, Adam's ninja zord (Frog) is flying around Billy, and Billy's ninja zord (Wolf) is flying around Adam. (01:04:00)
Continuity mistake: When Ivan starts the ooze pumping at the toxic chemicals plant, when the shot changes, the ooze is clearly water. (00:36:20)
Continuity mistake: In the scene where the rangers are reviving Zordon, they set their helmets directly in front of them, but when they move around Zordon's platform, the helmets seem to have followed them. Then when the emblems are coming out, the helmets have disappeared. After they move back together, the helmets have moved back. (01:24:55 - 01:26:20)
Continuity mistake: Near the end, when the Ninjazords begin to combine, you can see the Wolfzord (right arm) and Apezord (left arm) attach to the Bearzord (chest section), in this process you can see that the Cranezord (head section) is already attached but in the next shot it comes in for attachment.
Continuity mistake: During the ninja battle against the rock monsters, Tommy swings on a vine over to Kimberly and kicks the beast away from her. If you watch closely Tommy kicks the monster with his back to the screen but in the close up shot of him kicking the monster, his foot is facing towards the screen meaning his body switched sides. (01:01:05)
Continuity mistake: We see Ivan form from all the goop in the egg. When the Rangers arrive, after Ivan is out, the egg is still very full.
Continuity mistake: When Fred's father arrives home, the street is empty. But after he is zombified not even one minute later, the street is filled with people. (00:43:45)