From the Flickr Blog: “On July 1st, the community of Beloit, Wisconsin came together on the banks of the Rock River to recreate George Seurat’s ‘Sunday Afternoon on the Island of LaGrande Jatte’ — ‘Saturday in the Park with Friends’.”
(Thanks, Fipi Lele!)
Update: From Magnus of Schifz in Vienna, this link to many more tableaux vivants that recreate famous works of art.