The worst part was waiting around. Sometimes you are ready at 9 a.m. and you don't start until the afternoon. Occupying your time while you wait is the hardest part of the movie.
Pop science goes flying off in all kinds of fashionable directions, and it often drags a lot of SF writers with it. I've been led astray like that myself at times.
It's fun to branch out a bit. I feel like I've held a lot of tricks up my sleeve for a lot of years, and 'Ex-Girlfriends' is a good way to show another side of me.

