When Cody, C.J., Caroline and Newman stand around the shower talking, a woman in a purple bikini passes behind them twice going in the same direction. She passes by again when C.J. reads to Cody from the mermaid book, and does the same thing.
When Todd wakes up in the hospital and Kirstie asks where they'll go, she has her hand on the side of his head with two fingers behind his ear. When the camera angle changes, she has three fingers behind his ear.