Traditionally, a movie slapped with an adults-only NC-17 rating, or that has no rating at all, has struggled to make any money. “Most of the major theater chains would not play a film if it's ...

We coded the MPAA's age-based ratings numerically as 1, 2, 3, and 4 for films rated G, PG, PG-13, and R, respectively (ie, we coded an R-rated film with the age-based rating of 4).

Netflix, via Associated Press Since NC-17 replaced X in 1990, only 92 movies have ended up with the rating out of thousands, according to the M.P.A.’s online database.