Metallica drummer Lars Ulrich recently discussed the content of mysterious "Through the Never" bag, the item which the film's main character Trip is sent to pick up, making it somewhat of the movie's focal point. Ulrich was mostly vague in his explanation, but possibly dropped a hint supporting the claim that the bag in fact contains the spirit of late bassist Cliff Burton. "I heard a lot of takes on what's in the bag, the leading contender of course being - it's the new album" Lars told Metal Hammer TV. "But there are other, even more clever answers than that. I don't know what's in the bag 'cause I never looked in there. But I think it's less important what's in the bag, I think it's more about the journey. I think it's nice to have a bit of a cliffhanger." The theory of Burton's spirit being in the bag is based around several facts, one being that the moment Trip brings the bag back in the film, the band is playing "Orion," a song commonly associated with Cliff, his style and playing. Secondly, the film was released on September 27, the same day Burton died in 1986. During the rest of the chat, Ulrich talked about his experience with Hollywood movie producers, essentially calling them highly superficial and attention-lacking. "In Hollywood - if you can't sell your idea in 12 seconds and if you don't have obvious references - 'It's 'Star Wars' meets 'Jaws'' - if you don't have these easy references, people can't comprehend it." So what do you think of the Cliff theory? And have you checked out the movie yet? Let us know in the comments.