Ever wonder what goes into building the spectacularly spookiest costumes each Halloween? While it may take you days to compile your own (or your kids’ costumes), a new contest from Windows Live Movie Maker and Instructables.com asks trick-or-treaters to show off their movie-making in a matter of minutes. Simply create a 30-second movie (using photos and videos) to showcase the process of building their Halloween costume for the opportunity to win a new iCore 5 Gateway laptop with Windows 7 and Windows Live Essentials. To enter users can register an Instructables.com account and download Windows Live Essentials 2011. Contestants must submit their entries by Sunday, November 7. Winner is selected based on the use of Movie Maker and creativity in costume.

One winner will receive the Ultimate Windows Live Movie Maker Package:

* Brand new iCore 5 Gateway laptop …