VP of PR for CNN Worldwide Nigel Pritchard has announced he will be retiring after 15 years with the company and more than 28 in broadcast media. Lauren Cone, a senior publicist with the organization, will be taking on the majority of the duties Pritchard leaves behind. And Bridget Leininger, director of PR for CNN in Atlanta, will be head of the PR function for TV programming.

Marc de Grandpre has been named the CMO of IMAX, The Hollywood Reporter writes. De Grandpre will lead the efforts to bring 3D viewing into the home through a partnership with Discovery. He was previously CMO of Qualcomm’s mobile commerce brand, Firethorn.

Nick Twork has been named manager of product comms for Porsche North America. He will lead product-related media activities for the company in the U.S. He was previously as GM where he managed PR for Cadillac. In addition, Gary Fong has been named product experience manager and Dave Engelman has been appointed media relations manager.

Read more

Here are this week’s media highlights from Mediabistro’s Revolving Door Newsletter:

Ashley Mateo has been named assistant entertainment editor at SELF. She had been editorial assistant there.

Mitchell Parker has been named editor at Austin Monthly Home. He had been senior editor at Houston (Modern Luxury).

Ashley Parrish has been named editorial director at Daily Candy. She had been content director at Hearst Digital Media.

Bob Dees has been named senior vice president, strategy at SpotXchange. He headed media strategy and execution at Proctor & Gamble.

Nina Myers McCammon has been named home & fashion market editor at Country Living. She had been a freelance writer and market editor.

Click here to receive mediabistro.com’s Revolving Door Newsletter via email.