It's not often that documentaries get sequels, but for film director Chris Paine, not filming a follow-up to his hit 2006 film, "Who Killed The Electric Car?" would have been like leaving a question half-answered. 

The documentary, which focused on the more than 5,000 modern electric cars destroyed by the companies that created them, ended on a kind of cliffhanger — especially with whispers of a resurgence by automakers to tackle the technology in the wake of growing awareness of climate change. Paine, more than happy to offer a happy ending to an otherwise bummer of a movie, picked up his camera again in late 2007 to film the industry's change of heart on EVs. 

And so it is that "Revenge of the Electric Car" will be coming to theaters in 2011. The film goes "behind the closed doors of Nissan, GM and the Silicon Valley start-up Tesla Motors to find the story of the global resurgence of electric cars."

A trailer for the film is set to debut on Facebook, but only when the follower count for the official page reaches 10,000 — a clever marketing move to build buzz and audience. 

“We’ve developed a loyal and passionate community of electric car enthusiasts, environmentalists, and other fans of ‘Who Killed the Electric Car?’ over the years,” said Paine in a release. “It only makes sense to share the first public release of the trailer with fans and friends first, through an outlet where they connect to each other.”

Currently, the page has just over 2,500 fans, so if you wouldn't mind clicking over and "liking" it, it would help to give all of us an early sneak peek at this long-awaited sequel. 

Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

'Revenge of the Electric Car' trailer to hit Facebook
Film producers launch online campaign to generate buzz for sequel to the hit 2006 documentary, 'Who Killed The Electric Car'