According to The Hollywood Reporter actor Tim Blake Nelson is joining the cast of Marvel Studios' new Hulk movie.  Nelson will portray Samuel Sterns, a lowly industrial worker who is accidentally exposed to gamma radiation, which not only provides him with the green skin and power of the Hulk, but also with an oversize brain and the superintelligence to match.

Nelson, who had memorable roles in O Brother Where Art Thou? and Syriana, joins a Hulk cast that includes Edward Norton, Liv Tyler, Tim Roth and William Hurt. Louis LeTerrier is directing the movie, which is slated for release on June 13th, 2008.