This isn't exactly as it states in the Storyline, they're only small points but I think critical. She doesn't find the letter to Santa it blows past her, she picks it up and calls to the person who dropped it but they've gone before she can give it back. She then opens the letter and reads it and gets the return address, she takes it back on her own accord (not for monetary gain). She's not as bad or as selfish as the Storyline makes her out. This is a good thing as it makes her more agreeable to the viewers.
Crystal is portrayed well by Amy Acker, of whom I've been a fan of since I saw her in Angel. She was the reason I watched the film, of which I'm glad as the description didn't do the film justice.
She works really well with Emma Duke who played Olivia Gowen, the daughter of the love interest Derek. These scenes are well written, acted and directed with humour, warmth, and tenderness.
There are some good bits throughout the film, though my favourite is the "Whipp-Off" where Amy Acker and Gina Holden have a baking showdown. Awesome.
You could watch this film with the family or just cuddled up with your love. Much better than I expected and I would watch again.