The term 'STOP FILMING!' can be broken down into two crossword solutions: CUT (3 letters) and WRAP (4 letters). CUT is a term used in the film industry to indicate that filming should stop. WRAP is another term used in the film industry to indicate that filming has finished and the crew should begin to pack up their equipment. Therefore, the two crossword solutions together indicate that filming should stop and the crew should begin to WRAP up their equipment.