Film posters do need legal certification.Obscene & violent posters cause harm to women,youth & children mindsets.

Film production technology has improved so that preview can be on shooting spot for perfection.
So film audience do "need viewing freedom" from theatre to legal DVD on PC-internet.
World is comparative from both production and consumption.
Dialogues-music-script-visuals-business success(need not be 100days run) are essential requirements of film.