The new poster for 20th Century Fox's Night at the Museum: Battle of the Smithsonian has made its way online. Opening in conventional and IMAX theaters on May 22, the Shawn Levy-directed sequel stars Ben Stiller, Amy Adams, Hank Azaria, Robin Williams, Ricky Gervais, Owen Wilson, Ed Helms, Christopher Guest, Jon Bernthal, Bill Hader, Alain Chabat, Robert Ben Garant and Thomas Lennon.