Matthew McConaughey will soon be seen on the big screen in one of the darkest roles of his career, playing Killer Joe Cooper in the NC-17 film, "Killer Joe."
Although the NC-17 ruling may seem harsh, the 42-year-old star said the rare rating is deserved.
PLAY IT NOW: Matthew McConaughey Talks Mud & Killer Joe
"I don't know if I agree with why they gave it a NC-17 ruling, but for the reasons they say they gave it a NC-17 rating -- we're NC-17 with a capital 'N', a capital 'C' and a big '1' and '7'," Matthew told Access Hollywood in a new interview on Wednesday.
"Killer Joe" is definitely loaded with sex and violence, but Matthew said it's also funny -- filled with blasphemous humor.
VIEW THE PHOTOS: Hollywood’s Hottest Beach Bods
"When I first read the script, I didn't like it! I thought I got it and what I thought I got, I was disgusted by," he told Access. "I remember I said, 'I want to take a hot shower with a steel brush.' So I said, 'Alright, give me a few days and let me shake this first experience of this first read and go back and read it.'
"I did, and I found myself chuckling at a few things at first, then I found myself laughing hard, then I found myself having belly laughs," he added.
While Matthew is playing a contract killer in the crime thriller, off screen, the actor is a bona fide family man, having just married the mother of his two (and soon-to-be three!) children, Camila Alves.
VIEW THE PHOTOS: Hollywood Dads & Their Adorable Little Ones!
"Life is really good right now," he said. "I'm happily married, I'm happy we have another healthy child, so far, in Camila's belly."
"Killer Joe" - which also stars Emile Hirsch, Juno Temple and Gina Gershon -- hits select theaters on July 27.
VIEW THE PHOTOS: Matthew McConaughey
Copyright 2012 by NBC Universal, Inc. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.