During the "Word of Wizzum" performance, and after recovering his CTR ring, Kirby rotates the prop behind him from a picture to the letter "U". In the next scene the prop is back to showing the picture.
In scenes at two different concerts, the band performs in front of a handmade sign that spells out "Evercleer." In most other mentions in the movie, the band is known as "Everclear."