Robin Williams in rehab

PLEASE NOTE THAT THIS EDIT CONTAINS MATERIAL THAT WAS ORIGINALLY 4:3

Actor Robin Williams has entered a treatment facility, according to several media reports. The 62-year-old star, best known for his breakout role on the 1970's television comedy "Mork & Mindy," headed to a rehab center in Minnesota in an effort to maintain his sobriety.

According to the reports, Williams, who has struggled in the past, is committed to long term sobriety and is looking to fine tune that focus.

Susan Sarandon, Will Ferrell and Melissa McCarthy walked the red carpet on Monday (June 30) evening for the premiere of their film, the comedy, "Tammy."

The film tells the story of a woman facing multiple life-changing disasters looking to escape her small midwestern hometown. She enrolls the help of her grandmother, played by Sarandon, to accompany her on a cross-country roadtrip to turn her life around.

It opens in theaters Wednesday, July 2.

Paul Mazursky, the writer and dir