The ASA said most complainants found the images promoting the 15-rated film offensive, distressing and unsuitable for public display because the girl appeared to have suffered a sexual assault. The images appeared on buses and in the Cineworld's cinema chain's Unlimited film magazine. There was concern that the posters were likely to upset children because some posters were placed near schools and because the magazine was freely available.
I don't know what part of the tagline "Believe in Him," the crucifix, and the title The Last Exorcism allows for much ambiguity in terms of who and what the poster's subject is dealing with, but, well, OK. It's funny, though, because as far as I know, this never came up with the MPAA in the States, probably because the "Desaturate" function just seemed too obvious when dealing with the ratings board here. And all this time I thought the girl had just needed some Tide and a bath. Disturbing!
Anyway, here is how your quasi-controversial one-sheet sausage is made, FYI. [Click for bigger.]
ยท The Last Exorcism poster banned [The Guardian]