Marvel's The Avengers: Disney Store Exclusive Lithograph Set (BD)
Release Date: 9/25/2012
Disney Store will have an exclusive set of 4 Lithographs, free if you pre-order the Marvel's The Avengers blu-ray combo pack by September 24th, 2012. Note: This is the DVD/Blu-ray combo pack in DVD case packaging.
The same deal is also available at MarvelStore.com.