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: At the end of the movie when Lizzie is singing, her lips don't sync with the music.
Answer: Carina means "pretty" or "pretty one".
Myridon