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: Dulcea starts spinning the sticks to drive away the Tangu warriors. First off she is spinning the sticks in her hands. Camera changes and now she is holding a handle to spin them. (00:38:00)
Revealing mistake: In the final Megazord-fight, Aisha (Yellow Ranger) uses her Bearzord against Hornitor, then she says "I've been hit hard." Between the two shots, the power-emblem medallion on her chest falls off. (01:13:10)
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)
Continuity mistake: When Fred comes home to find his dad, the position of the items on the counter change place. Notice the ooze. The container is at an angle to the side of the counter then parallel to the side of the counter. (00:48:00)
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 Tommy says to the ooze men about them meeting Saba, the Rangers' positions all change instantly. (00:26:00)
Continuity mistake: In the parking lot scene we see Tommy get thrown through what appears to be plasterboard. When he goes through it leaves a big chunk still attached in a triangle shape. Camera cuts and what remains has changed and the triangle piece is not to be seen. (00:23:10)
Continuity mistake: Just as Tommy asks for some light near the start, the positions the Rangers are in changes instantly. Most noticeable is Yellow Ranger. Her arms go from forming an X to out in front of her. (00:21:40)
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.