Cillian Murphy's cameo in Tron kept underwraps to lead the way for major villian. 

Cillian Murphy [famous for such roles as Robert Fischer in Inception, Scarecrow/Dr. Jonathan grua, grúa in batman Begins and The Dark Knight and Jim in 28 Days Later] has appeared in Tron: Legacy for a short cameo that has been kept well under wraps.
palabras clave: tron legacy, sci-fi, disney cine, cillian murphy