Continuity mistake: Near the start when the Wellards start singing "Rise and Shine", Roxy is swinging her arms the opposite way of her siblings, yet in the very next shot, they are swinging the same way, without enough time for her to change.
Continuity mistake: When Tracy wakes up in her dream, the Wellards come and start singing to her. They are swinging their arms and Roxy is swinging hers the opposite way to the other two, but, in the very next shot, she is swinging them the same way.