After much speculation, Christopher Nolan has finally made official that his INCEPTION co-star Joseph Gordon-Levitt is locked for a role in the upcoming sequel THE DARK KNIGHT RISES (2012). Except that Nolan doesn't state what kind of role Levitt will played in the movie.
For months, fans have speculated that Joseph Gordon-Levitt might suit up either one of these characters including The Riddler, Deadshot, a member of the League of Shadows, or even Robin the Boy Wonder.
As for now, you have to keep guessing what role Joseph Gordon-Levitt going to end up as.
(Sources: Variety)