Headscratchers / Kronk's New Groove

• Since Kuzco’s theme song singer is called Theme Song GUY, due to Kronk’s theme song singer is female, should she be called Theme Song GIRL?
• So the film's director hated the cheerleader camp plotline because... it was anachronistic in Ancient Peru. Did... did he not watch the original movie? Or did he assume the floor waxers, water parks, truck stop diners, Elvis impersonators, balloon animals, trampolines, etc. were all period-appropriate?