Concerning the movie's theatrical release, studio's give directors and his staff a running time and he has to follow it, even if it means it'll be a lesser quality version of the film.
Martin Scorsese was recently forced to cut 45 minutes out of his Gangs of New York, even after he strongly argued that there was practically no footage he could cut without reducing the quality of his film.
"I hope if dogs ever take over the world, and they chose a king, they don't just go by size, because I bet there are some Chihuahuas with some good ideas." -Jack Handy
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