Watch Jack Black, Slappy and Director Rob Letterman Talking GOOSEBUMPS @DesdeHollywood was invited to take part of the GOOSEBUMPS press conference in Los Angeles. Watch our exclusive video below, where Jack Black, Director Rob Letterman, and the diabolical dummy Slappy talk about the Sony Pictures adventure. The movie also stars Dylan Minnette, Odeya Rush, Halston Sage, Ryan Lee, Jillian Bell, and Amy Ryan. GOOSEBUMPS is now playing in theaters nationwide. A young kid teams up with the niece of young adult horror author R.L. Stine after the writer’s imaginary demons are set free on the town of Greendale, Maryland.