Movies rated R returned about $42 million at the box office on average last year, while the average haul of PG ($82 million) and PG-13 movies ($79 million) was roughly double that.

The 40-year-old aversion: Why I’ve always hated the PG-13 In 1984, the MPAA introduced a new rating that was supposed to warn parents about violence. Our film critic explains how that backfired.

There's a lot of arguments to be made for and against PG-13 cuts of rated R films.

The MPAA confirmed that 5,578 films earned a PG, 4,913 have earned a PG-13, and G-rated releases come in at 1,574. In 50 years, only 524 movies have earned an X or NC-17 rating.