Halloween: It’s always more complicated than you want it to be. Even if you’ve got your plans set, it’s a struggle to find the perfect costume — without resorting to the same crappy, overpriced, pre-packaged getups everyone else will be wearing. So, this October, Flavorpill is helping you out with easy, weekly DIY costume guides tackling four different pop-culture realms. Don’t worry — there’s no sewing involved.

For this third installment, we’re tackling some of the year’s biggest films, from zeitgeist-y smashes to campy flops. Whether you’re goth or glam, nerdy or mysterious, or long to emulate a total trainwreck, explore your movie-inspired costume options after the jump.

Mark Zuckerberg sticking it to corporate America, The Social Network

In what may be remembered as 2010′s movie of the year, Jesse Eisenberg is all twitchy dialog and nerdy superiority as Facebook founder Mark Zuckerberg. While the T-shirts and hoodies he wears throughout most of the film couldn’t pass for a costume, the “fuck you” pajamas he throws on to meet a major potential backer will be instantly recognizable and a great costume for fans and haters alike.

The costume:

Gray plaid flannel mens robe – $49.50, Lands’ End

Blue ringer T-shirt – $5.71, Jiffyshirts.com

Green football-themed pajama pants – $14.99, Crazy for Bargains

Adidas mens Duramo slide – $19.99, Gettington.com

Brown, curly mens wig – $15.69, Ziggos