Ben Affleck said two legendary "Batmen" - George Clooney and Christian Bale - had offered their guidance.
"I talked to Clooney and he gave me some advice which is not repeatable," Affleck joked.
"And I talked to Christian, who just told me to make sure I got a zipper in the suit, which was valuable, practice advice as it turned out."
Clooney starred as the caped crusader in the regrettable "Batman & Robin" (1997), which featured the unforgettable nippled bat suit.
And Bale, 43, starred as Batman in the Christopher Nolan's acclaimed "Dark Knight Trilogy: Batman Begins" (2005), "The Dark Knight" (2008), and "The Dark Knight Rises" (2012).
Affleck also dished on the year long workout regimen he undertook to get into crime fighting shape, which he admits was spurred on by a little healthy competition with Cavill.
