Neither J.J. nor Damon are writers on the movie. But they are writers, and WGA members. During a WGA strike, you’re not allowed to write on movies or television shows, period. So they can’t change a word of the script, nor can anyone else. The script they had at 11:59 p.m. November 5th is the script they have to shoot.
To a screenwriter, that might seem kind of awesome. For once, the director can’t change things. But when its your own movie, it’s maddening. J.J. was describing a scene he was shooting the day before. Midway through it, he got a great idea for a new line. Which he couldn’t write. Couldn’t shoot. Couldn’t be in his movie.
Damon described it like having one of your superpowers taken away.
You can absolutely make a movie without changing the script. Big Fish and Charlie were shot just like they were written. But to not even have the option of changing something is a bizarre restriction, like making a Dogme 95 film with a $100 million budget. As feature writers, we’re constantly asking to be included in production, on the call sheet, on the set. Suddenly, we’re completely removing ourselves from the process.
So unless the strike is settled soon, we're going to have a no-frills production in theatres come next Christmas. Cross your fingers.