Mark Ruffalo joins Avengers cast…

Mark Ruffalo has reportedly been cast as the Hulk in the upcoming Avengers movie.

According to Deadline, a deal has been reached by Brillstein Entertainment Partners with Marvel for Ruffalo to join Robert Downey Jr, Chris Hemsworth and Chris Evans in the group superhero movie.

Samuel L Jackson and Scarlett Johansson are also expected to appear in the film.

The film is scheduled to arrive in cinemas May 2012.