David Fincher revealed the real contents of the box from Seven, shutting down long-held rumors. The box did not hold a prosthetic head although Fincher calculated the weight for authenticity. Pitt fought for the darker ending in Seven, as the studio wanted a lighter version.

Director David Fincher recently clarified a long-standing question about the contents of “the box” in Se7en while discussing the film’s 30th anniversary. Speaking in an interview, Fincher directly addressed rumors of a prosthetic head being used in the iconic scene.

After years of rumors and speculation about the ending of Se7en, David Fincher has finally revealed what was actually in the box in the film's final moments.