The undisputed kings of heavy metal, Metallica, made their very first appearance at San Diego Comic-Con today. All four members of the icon band – James Hetfield (vocals, guitar), Lars Ulrich (drums), Kirk Hammett (lead guitar), and Robert Trujillo (bass) – came to the convention center’s Hall H to promote their upcoming 3D film, Metallica Through The Never. Director/writer Nimród Antal (Predators) and producer Charlotte Huggins (Journey to the Center of the Earth) also appear on the panel, which revealed the world premiere of the film’s theatrical trailer and poster, as well as exclusive preview footage.

Check out the theatrical trailer and poster here below.

The movie stars the band in concert performance sequences, along with actor Dane DeHaan (from The Amazing Spider-Man 2) as Trip, a roadie who is sent on an urgent mission to pick up a bag during one of the band’s sold-out shows. Tripp’s mission gets diverted after his van crashes; when he emerges from the wreck, the city seems to have gone mad, with rioting and a masked horseman riding through the streets hacking at and lassoing the citizens. But Tripp still has his job to do and the audience is left to wonder, what’s in the bag?