2. The show's team works quickly. Also, cheaply.

Matt Groening: One of the amazing things about Futurama and its team is we did these four movies fairly quickly.

David Cohen: It's been less than three years since day one of starting work and we've put our four of 'em, so...

Matt Groening: Theatrical animated movies take about four years to do. And we didn't do it for very much money. The thing I'm proudest of is that everyone really poured their heart into it.

David Cohen: Plus we've tried to have some really cinematic scenes in these movies, especially this one, which is incredible, because it was done in HD. But we got fined by the animation studio for having 250 characters on screen in one shot!

3. Co-creator/writer David Cohen has a stored knowledge of the show that would put pedantic fans to shame. For a month, anyway.

David Cohen: My memory is terrible. But for the month or two after we finish each movie, I have it memorised. It goes from 100% to zero very quickly.

I briefly remember every aspect of it and why we did everything and that's why I'm so desperate to get it on to the commentary tracks, so I can listen to it and keep it.

Matt Groening: Plus you're like the kid who does his homework the night before we do these things.

David Cohen: I never have more than one page of notes. Things like song titles that I might not recall.

Matt Groening: I have a theory about animation writers. Part of why Harvard or any good school spawns good writers is the amazing memory.

You're sitting there in a room and you don't have time to look things up - everything is off the cuff. David has a huge font of knowledge to draw on.

David Cohen: From the last month!