When the elves are playing doorbell-dutch, the doorbell rings although the power is still out.
When Edwin crashes into the bucket of chocolate and flies into it, the weather machine gets some chocolate on it, which subsequently disappears.
When Edwin arrives at the Thompsons' house, he rings the doorbell--but the power is out.
When the electricity goes out, the cordless phone still works; cordless phones don't work without electricity.
The electricity has gone out but the Christmas-tree lights are still lit.
When the girl is licking the chocolates, Santa is visible standing on the side of the screen before the smoke bomb goes off for his reveal.
When Edwin goes to see his boss, it is obviously daytime outside. However, this scene is supposed to take place during the night.
When the text appears "Antarctic--Weather Station", Antarctica is spelled without an a.
No evergreen forests occur naturally in Los Angeles; evergreen forests in Southern California are only found in the high mountains, which are sparsely populated and receive some natural snowfall.
Hallee Hirsch's character's address--318 S. Central Avenue--is right in the middle of Downtown Los Angeles; not the place where you would find a suburban street with relatively-new upscale houses.