LOS ANGELES - The Academy of Motion Picture Arts and Sciences is encouraging celebrities to tweet during the Oscars.

The film organization has expanded its digital outreach for the 85th Academy Awards with a new feature that allows stars to snap photos backstage during Sunday's ceremony and instantly post them online.

What Twitter calls a "Magic Mirror" will take photo-booth-style pictures of participating stars in the green room and send them out on the academy's official Twitter account. Organizers expect multiple celebrity mash-ups.

In addition, a new video-on-demand feature being introduced Sunday allows Oscar fans to view show highlights online minutes after they happen and share them with friends on Twitter and Facebook.

Oscar.com will also offer other behind-the-scenes interactive features, including various backstage cameras and a live blog that aggregates the show's presence across social media.