Meryl Streep Is Downsizing March 3, 2009 Streep, Witherspoon et al. joi Alexander Payne’s next project? Meryl Streep, Reese Witherspoon, Paul Giamatti and Sacha Baron Cohen have joined the cast of Alexander Payne’s new project Downsizing. According to Hollywood Elsewhere, the quartet are attached to the movie, which has yet to be announced by the Oscar-winning writer-director. No story details have yet surfaced. Both Giamatti and Witherspoon have worked with Payne previously; Giamatti in wine-themed comedy Sideways in 2004 and Witherspoon in Election, which provided her big screen breakthrough.