Check out a first look at the Cosmic Cube from the upcoming Captain America: First Avenger movie courtesy Superheryhype!
Apparently, a user on their forum found this from the print version of SFX Magazine.
Nice find! (The cube in the movie is actually being referred to as a "Tesseract.")
That is actor Huge Weaving portraying the Red Skull holding the Cube! The cube holds immense power - and can actually grant wishes with extra-dimensional reality-altering energies.
Updated: Here is an image of the Red Skull from the Captain America: First Avenger: Superbowl XLV Trailer.
Captain America: First Avenger opens in theaters July 22nd, 2011 starring Chris Evans as Captain America!
Here are more pics from the magazine via Suerherohype: