The Motion Picture Association of America has announced the line-up of speakers for its April 21 Business of Show Business symposium in Washington, which will include a luncheon keynote by professional wrestler-turned-actor Dwayne Johnson. Johnson, who was known to World Wrestling Entertainment fans as "The Rock," got his big screen break in Universal Pictures' "The Mummy Returns" and appeared in box office hits "The Scorpion King" and "The Game Plan." In recent years, Johnson has established himself as a top leading man in Hollywood and was most recently seen in Walt Disney Pictures' "Race to Witch Mountain," which opened at #1 at the box office on March 13.

In addition to Johnson, speakers include Rep. Steve Scalise, R-La.; heads of film offices for Chicago, Philadelphia, and Georgia; "Angels and Demons" Executive Producer Todd Hallowell; Paramount Executive Vice President Chris Carey; Pixar Vice President Rob Cook; costume designer Deborah Nadoolman Landis; and Blue Sky Studios Chief Technology Officer Carl Ludwig. "So much goes in to making a film - from local crews and catering to handmade period costumes and innovative special effects - this event is a forum to showcase America's off-screen stars and give everyone a better sense of the business behind the movies," MPAA Chairman Dan Glickman said in a press release.