VANCOUVER, British Columbia--(BUSINESS WIRE)--Guillaume Aubuchon demonstrated the power of cloud based workflows during the OpenStack keynote today. With partners HP Heilion and Blue Box Cloud, DigitalFilm Tree demonstrated how cloud based workflows generate significant production efficiencies in Hollywood’s new era of mobile production. Guillaume, CTO of DigitalFilm Tree noted, “Now that the world is the stage for virtually every major production in Hollywood, the cloud is essential to knit to