Wiktionary
blue films
n. (blue film English)
Usage examples of "blue films".
She simply makes blue films while I'm out of town, for private screening in this old head of mine.
All this time the movie projector was showing blue films on the wall, and now I sat on a chair with the stopwatch to time the girls as the first one came in and stood astride him and relieved herself.
Beside was a section given to disks of luminous green, flickering and flourescent with varying blue films and moving dots of scarlet and black.