Continuity mistake: When Jaime and Aurelia are in the lake, after she warns about the eels, Jaime's hairstyle changes between one frame and another.
Continuity mistake: Toward the end of the film when Sam reaches the gate from which Joanna and her mother are departing, he looks down to see them in the boarding line with several people behind them. When he races down to say goodbye, Joanna is last in line.
Answer: In the follow-up short released last year it's revealed that, while she never got together with Karl, she ended up having a very happy life with a great husband (played by Patrick Dempsey) and children.