The video comes from the charity fundraising organization Omaze, who works with movie frequently to help support numerous charities.
Ben Stiller hosts the video completely in character as White Goodman, and he looks like he just stepped off the set of the movie, nothing has changed.
Apparently, there will be a reenactment of the finale of the movie that anybody might be lucky enough to take part in.
He offers to play dodgeball with the lucky winner of the Omaze drawing, before Vince Vaughn, Justin Long, and Christine Taylor all arrive and offer to let the winner join their team instead.