Bale played the Caped Crusader in filmmaker Christopher Nolan's blockbusters "Batman Begins" and "The Dark Knight."
"Until Chris tells me, I don't believe it," Bale told E! News about when he knows another Batman movie is on the horizon. "It's gotta be from his mouth, or else I don't really know."
Bale went on to say Nolan hasn't informed him regarding whether he plans to make a fourth installment in the franchise after he completes "Rises."
"The thing is that this will be, I believe, unless Chris says different, this will be the last time I'm playing Batman," Bale told E! News.