Marvel Studios has gone to great lengths to keep Sadie Sink's role in Spider-Man: Brand New Day under wraps, but a comment made during the film's premiere may have inadvertently revealed one of its biggest secrets.

Steve Lacy's red carpet slip-up

During a red carpet interview with streamer Valkyrae, musician Steve Lacy, whose music features in the film, was asked which character he was most excited about without giving away any spoilers. His response quickly caught fans' attention. "You know what? Jean... I like Jean. She's the villain, but there's a reason to her madness," Lacy said.