Complex sentence: In December 2013, Sandberg began a Kickstarter campaign to crowdfund the film's production with the goal of raising US $200,000 to produce a 30-minute version of the film and stream it online for free.
Split into simpler sentences: In December 2013, Sandberg opened a Kickstarter campaign to crowdfund the production of the film. The initial goal was to raise US $200,000 to produce a 30-minute version of the film and stream it online for free.