Here are some selected date from the MPAA's ratings #2237:
#HOLDYOURBREATH - Rated R
For strong bloody violence, sexual content, language and some drug use.
Pusher - Rated R
For pervasive drug content and language, some strong sexuality, nudity and violence. Release Date: TBA 2013
The Swan Princess: Christmas - Rated PG
For some scary moments
NOTE: INTENDS TO APPEAL TO THE C.A.R.A. APPEALS BOARD*
Texas Chainsaw Massacre 3D - Rated R
For strong grisly violence and language throughout. Release Date: January 4, 2013
Tyler Perry's We The Peeples - Rated PG-13
For sexual content, drug material and language. Release Date: May 10, 2013
*Most interest rating today was the PG-rating for Sony Pictures's The Swan Princess: Christmas.
I'm not sure I've ever seen a PG-rated film head in to the appeals process..