Israeli content production firm The Box has raised “several million dollars” from Greylock Partners. The company creates specialized advertising content for cell phones, TV, and the web. Customers include Nike, Coca-Cola, and Disney (NYSE: DIS). The Box also creates some original programming. One recent animated series produced by The Box which is currently airing on Israeli TV allows viewers to contribute their own creations to the show via a website. The company said it would use the new cash to fund international expansion, including the opening of its first U.S. office in Los Angeles. It’s Greylock Israel’s first content investment.