Co-starring with Damon and Witherspoon are Tony Award nominee Alec Baldwin (Orphans, A Streetcar Named Desire), Tony Award winner Neil Patrick Harris (Hedwig and the Angry Inch, Assassins) and Jason Sudeikis ("Saturday Night Live," "Horrible Bosses"). Academy Award winner Alexander Payne ("The Descendants," "Sideways") will direct.
Payne and Jim Taylor wrote the script, which follows a man as he realizes he would have a better life if he were to shrink himself.
"Downsizing" is intended for release at Christmas 2017.