The first trailer for the documentary West of Memphis has gone online. Produced by Peter Jackson and Fran Walsh, the film takes a new look at the circumstances surrounding the West Memphis Three. If you’re unfamiliar with the case, three teenagers were convicted of murdering three young boys in West Memphis, Arkansas in 1994 with virtually no evidence. They were recently freed through a complicated legal maneuver (saving the life of Damien Echols, who was on death row), but the true killer remains at large and the Arkansas legal system is refusing to admit their mistake.

The case has been well covered by the Paradise Lost trilogy of documentaries, so I was curious as to why Jackson felt the need to produce yet another documentary. This trailer makes clear that Jackson and director Amy Berg’s intent is to clear the names of the West Memphis Three and bring to justice the real murderer of the three boys from West Memphis. It’s engaging stuff, and I can’t wait to check the full film out once it's released. Hit the jump to watch the trailer. West of Memphis will premiere at the upcoming Sundance Film Festival.