Totally enjoyable movie, though no one really thinks about the core of the flick, about a group of friends with an odd talent going into business for themselves.  I love the fact that they're constantly on the brink of bankruptcy, working and living out of a crumbling old fire house, cobbling together all the technology they need, making cheap TV commercials... it's very down to earth and I think a big part of why people responded so well to the movie is because of that, they're not sleek or hi-tech, everyone in the movie is more or less a regular person-- and much more, a New Yorker-- that everyone could easily connect to.  You feel like you could run into or hang out with any of the characters and that's big.