Movie executives at Twentieth Century Fox have sent bosses of adult film studio New Sensations a cease and desist missive after learning they've completed filming of a sexy new X-Files porn spoof.

The X-Files: A Dark XXX Parody is now in post-production, but the steamy X-rated DVD, which features a stunning Gillian Anderson look-alike, will never be released if film chiefs get their way.

In the letter, a representative from Fox demands that New Sensations change the title of the film and cease using any X-Files trademarks.

Defiant porn bosses insist their intended product does not infringe the rights of Fox, and they plan to change the name of their parody to The Sex Files: A Dark XXX Parody.

It's not the first parody of a TV hit the studio has attempted - New Sensations is also the firm behind porn spoofs of The Office, Scrubs, Seinfeld and Friends among others.

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(This news article provided by World Entertainment News Network)