Audio problem: When Lizzie is performing at the end of the movie at the awards show, at the part where we see her from the back facing the blue light, her voice sounds like it's changing. It seems like it's someone much older singing, or the synthesizer went wrong. It just obviously isn't Lizzie's voice anymore.
Audio problem: During the audition song when the drummer first looks at Anna wondering why she isn't playing, his sticking is out of synch with the drumming.
Audio problem: When trapped underwater in the net at the Black Castle, Peter pulls out his knife from his small leather sheath underwater and we hear a metallic rasping sound which it should not make since it isn't scraping metal. (00:49:55)
Audio problem: Near the very end, when Ren pushes Louis over the edge of the cliff, the very noisy helicopter can't be heard until it is seen coming into view.
Audio problem: When Galleria is playing the piano by herself at school, it's obvious she really isn't playing. Her hands are moving way too slow for some of the parts and at the end, her hands are playing very low on the bass notes when the notes heard are in middle-low C range.
Audio problem: At the end of the film, when Ms. Harridan is working as a police officer, the whistle drops from her mouth in astonishment when she sees that her former employee Jenny now works for Daddy Day Care. She never puts it back into her mouth, but then when she tries to stop a green minivan from going to Daddy Day Care we hear the sound of her whistle.
Audio problem: When Mr. Pendanski is saying, "Smells like puke from a mule." if you look carefully he is actually saying, "Smells like piss from a mule." Original dialog is in the 'Deleted Scenes' section of the DVD.
Audio problem: When Marlin and Dory swim into the deepest part of the ocean to reclaim their mask, they see a light (which we know later, belongs to an angler fish). They stop right underneath the light and says "What is it?" but his mouth doesn't match the movements. It looks as though the animators had Albert Brooks (Marlin's voice actor) say a different line than what was animated.
Audio problem: When Steve Martin is talking to Bonnie Hunt on the phone and the kids are playing, a small dart lands between his feet. The sound the dart makes when it sticks to the floor is not accurate at all and deliberately sounds as if it comes from a object much heavier. (00:50:25)
Audio problem: When Colin Firth's mother shoots down the tree where the bird is resting, and the branch falls, you never hear the sound of the branch hitting the ground.