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)
Visible crew/equipment: Throughout the entire film, you can see lights, cameras, and crew reflected in the Rangers' visors.
Continuity mistake: After the Black and Red Ranger jump down off the platform during their fight with the ooze men, it shows two ooze men jumping after them, but when they land, there are three ooze men. (00:23:55)
Visible crew/equipment: At the end of the film when Fred's dad moves toward him to pull him out of the cherry picker if you look in the bottom left corner of the screen you can see a crew member in the quarry controlling the vehicle. (01:20:15)
Visible crew/equipment: When Tommy is attacking the dinosaur skeleton with a stick you can see some kind of blue equipment or maybe the operator inside the thing as it turns its head towards Tommy. (00:53:20)
Visible crew/equipment: When the rangers are skating past the camera, a camera can be seen reflected on the shorts of Rocky. (00:06:20)
Continuity mistake: When Fred's father pulls into his driveway, you can see the raised part of the dashboard where the steering wheel, odometers and such sit, on the lower right side of the windshield. Then when he gets out of the car, he climbs out of the left side and you can see there's no steering wheel there. (00:43:00)
Revealing mistake: When the morphed Red and Black Ranger fight the ooze-men, the Red Ranger does a "tornado-kick" right before Adam says "rocky behind you." In the middle of the tornado-kick there was an obvious edit of the shot. The ooze-man suddenly is a few steps back and the camera seems to have repositioned. This bad cut was more noticeable in the VHS-release. (00:24:30)
Audio problem: When Zedd, Rita, Goldar and Mordant are at the building site to free Ivan Ooze there is a moment when Mordant says "I could do that, I just choose not to" however his mouth continues to move long after he has said this. (00:11:16)
Continuity mistake: When the Rangers teleport to the command centre for the first time all their roller blade gear has vanished. (00:09:13)
Continuity mistake: When the Tengu Warriors are first forming, you can see there are 9 distinct piles, but when fully formed there are 10 unique warriors.
Continuity mistake: When the rangers find the temple, we see Kimberly jump up the few step in an overhead shot. Camera changes to Tommy and she climbs the steps again in the background. (00:57:40)
Continuity mistake: Dulcea brings her hands together when she pours the powder into her hand to call upon the Ninjetti Animals, When she turns, she brings her hands together again. (00:44:55)
Visible crew/equipment: When Fred is examining his ooze, the camera moves in for a close up and the shadow can be seen moving over Fred's face. (00:41:35)
Continuity mistake: When Ivan is showing off his ooze to the kids, we see a shot of the kids from the back and there is a girl with a cap covered in numbers. Behind her slightly is Fred in a white shirt and black cap that is on backwards. When we see the kids from Ivan's point of view, the kids have moved. Fred isn't by the girl anymore but is at the back in the centre of the crowd. (00:40:50)
Continuity mistake: When fighting the Tangu warriors, we see Kim get lifted away. Adam is on his own on the ground. Camera cuts to show a warrior is right next to him. (00:37:15)
Revealing mistake: When the last 3 Tangu warriors fly off to find the Power Rangers, one of them knocks the wall of the cave, which visibly moves. (00:33:35)
Continuity mistake: When Tommy says to the ooze men about them meeting Saba, the Rangers' positions all change instantly. (00:26:00)
Other mistake: At the end of the fight scene with the ooze men in the construction site we see the rangers flip in the air to regroup. Watch closely at the left hand side of the screen. There is some steam or smoke in the air which we see completely disappear instantly as Adam is going through the air. It doesn't dissipate into the air, it just vanishes. (00:25:50)
Audio problem: Billy swings across the construction site to help Aiesha, he then stamps on some ooze men's heads. He counts each stomp up to 6 and we hear 6 stomps. However there are only 3 ooze men, and we can plainly see Billy doesn't stomp any more than once. (00:25:25)
Answer: They weren't even considered to appear in the movie considering there were so many other changes (different suits, new Command Centre etc). Also the movie has been widely accepted as out of continuity with the TV show, so their disappearance doesn't really mean much.