Revealing mistake: On the boat, just as Zira says "We've met hundreds since we've been here and I trust three", you can just make out the actress' real teeth behind Zira's fake prosthetic teeth and ape make-up. (01:24:35)
Revealing mistake: At the end of the film as the camera zooms in on Milo as he's starting to speak, the part where he says "mama" is on a loop. (01:32:35)
Revealing mistake: Throughout the film, when the camera goes close to Zira, you can see the line where her wig is glued on.