The same week Warner Bros. released its summer blockbuster "Man of Steel" Vivid Entertainment group put out its own version of a Superman movie titled "Man of Steel XXX: A Porn Parody."

Having popular movies, television shows and world events readapted into a porn parody is nothing new. However, the Washington Post notes that if this film does anywhere close to the 2010 "Batman XXX: A Porn Parody" it will become the most-rented and highest selling porn video of the year.

Not only did it cost a whopping $100,000 to make, which is a lot for a porn film, it is filled with expensive special effects, real story lines, actual actors that "comic-book geeks find authentic."

The films fit into a niche market that the industry hopes will bring it out of its slump thanks to years of Internet piracy, illegal downloads and amateur videos that have resulted in a serious financial dip for the pornography industry. The industry has reportedly gone from $12 billion a year to only $7 billion.

Other porn parodies of famous super heroes have been made as well. It turns out, just like in the regular film industry, people love to see super heroes movies. Superman and Batman are joined by Iron Man, Spiderman and several others in the X-rated film universe. The Post quips "All four have taken turns in full-length, slickly produced films that include hard-core crime fighting and, well, other hard0core scenes - although milder versions were made of some of the same films."

Since superhero movies became a staple in the porn parody industry no porn company has been sued for making the titles. Courts have typically ruled that the parodies, like other forms of free speech, is protected under the First Amendment.

Tell us what you think. Are porn parodies protected under free speech or should studios back off and let a super hero be a role model?

Below is a (suprisingly tame) trailer for "Man of Steel XXX: Porn Parody"