Will Smith will be a featured speaker at next week’s big D.C. confab aimed at letting Congress know just how important the movie industry is to the U.S. economy, the Motion Picture Assn. of America announced Wednesday.The MPAA-sponsored event, skedded for Feb. 6, has already netted the participation of major studio heads and some directors. The Oscar nominated actor is the first onscreen talent to commit to attending. MPAA is said to be wooing Clint Eastwood for his participation, but org officials declined to comment. Smith will speak during the opening breakfast program. Joining him will be Michael Lynton, chairman and CEO of Sony Pictures Entertainment, and Rep. Charles B. Rangel (D-N.Y.), chairman of the House Ways and Means Committee.