A short message from Bill Gates, Mark Zuckerberg, will.i.am, NBA all-star Chris Bosh, Gabe Newell of Valve, Drew Houston of Dropbox, Elena Silenok of Clothia, and other tech heroes, to inspire students to learn to code. This is a trailer, for a longer 5-min or 10-min short-film, available at http://code.org. Directed by Lesley Chilcott. Executive producers Hadi and Ali Partovi.