Watch Jack Black Face Off Against Goosebumps' Slappy The Dummy

We may earn a commission from links on this page.

During the Goosebumps movie presentation at San Diego Comic-Con, Jack Black brought out the film's real star: Slappy the Dummy. Together, they did a ventriloquist routine on stage... one that didn't end well for Black.

Once Black was swept off stage, Slappy stuck around for one final word: