A Marriott Hotel in Calgary. Marriott International is phasing out the availability of pornographic movies in its 600,000 hotel rooms worldwide. (QMI Agency/DARREN MAKOWICHUK)

Marriott International is phasing out the availability of pornographic movies in its 600,000 hotel rooms worldwide.

The hotel chain said in a world of portable online devices, adult content doesn't bring in the revenue it once did.

“Changing technology and how guests access entertainment has reduced the revenue hotels and their owners derive from in-room movies, including adult content. We are working with in-room entertainment providers and technology vendors to transition to the next generation of in-room entertainment,” Marriott said in a statement.

But while the chain adopts Internet-based video-on-demand for its in-room entertainment, porn won't be on the new list of options.

“As we transition to this new platform, adult content will be off the menu for virtually all of our newly built hotels. Over the next few years, this will be the policy across our system.”

The announcement comes just two weeks after Republican Mitt Romney resigned from Marriott's board. Romney sought the Republican presidential nomination in the last U.S. election cycle and is rumoured to be considering another run in 2012.

Christian organizations that have long been pushing the hotel to get rid of porn in its rooms were very critical of Romney for not putting more pressure on the chain.