'Dark Knight' Director Christopher Nolan Is 'Phenomenal,' Cillian Murphy Says

'Red Lights' star looks forward to Nolan's final Batman film, as well as a potential return to the 'Tron' universe.

PARK CITY, Utah — Despite photo and video leaks from the set, two trailers, one prologue and plenty of interviews, there are still several unanswered questions surrounding "The Dark Knight Rises." Chief among them is the rumor that Cillian Murphy, who played the fear-mongering Scarecrow in "Batman Begins," will return once more to Gotham City when Christopher Nolan's final round with the Caped Crusader rolls in front of audiences in July.

For his part, Murphy has kept his lips shut on any surprise "Rises" cameos — though given that his psychotic psychiatrist Jonathan Crane appeared very briefly at the beginning of "The Dark Knight," a return appearance for Nolan's final Batman movie seems likely. But even if he doesn't terrorize Bruce Wayne one last time, Murphy is very eager to see what Nolan has in store for the trilogy's conclusion.

"I'm looking forward to it," the actor told MTV News at the Sundance Film Festival, where he's promoting his paranormal thriller "Red Lights" from director Rodrigo Cortes. "Any film that Chris Nolan makes ... he's got a good track record. He makes amazing movies."

"It's been a huge honor to work with him," Murphy added. "He's just phenomenal."

One villainous turn Murphy was allowed to speak about a bit more freely was his all-too-brief appearance in "Tron Legacy." The Irish actor had a very small but potentially crucial role as Edward Dillinger Jr., son of original "Tron" villain Ed Dillinger Sr., and it seemed as though he might have a bigger and badder part to play in subsequent "Legacy" sequels.

"Talk about being in a movie for a 'blink and you'll miss it' [role]," Murphy laughed when his "Tron" cameo was brought up. "I was just such a fan of the original, and they asked me if I wanted to be in it. I said, 'Absolutely. Anything you want.' "

But as for whether or not he'll come back for more "Tron," Murphy remains unsure. "I don't know," he said. "It was just a buzz to be in that movie, even for [one scene]."

The 2012 Sundance Film Festival is officially under way, and the MTV Movies team is on the ground reporting on the hottest stars and the movies everyone will be talking about in the year to come. Keep it locked with MTV Movies for everything there is to know about Sundance.