From Longman Dictionary of Contemporary Englishcutting roomˈcutting room noun [countable] AMFa room where the different parts of a film are cut apart and put into the correct order, to make the final form of the film
Examples from the Corpus
cutting room• They are like scraps from a tailor's cutting room which have taken clumsy wing.• Industry shake-ups cursed Earth Girls with a protracted delay between the cutting room and the screen.• It was the latter which still found itself on the drawing board when the rest had hit the cutting room floor.• Back at the station, the film was rushed into the cutting room and we caught the programme.• Unfortunately, that sentence ended up on the cutting room floor. 