Question: What did Nirvana do differently with "In Utero" that caused a documentary to be made about recording the album?
Sentence (from "Nirvana – A Classic Album Under Review – In Utero"): The film purports to offer a "rare insight" into the influential music group, and consists of live and studio performances by Nirvana, interspersed with interviews with the band and with music industry notables and experts.
Relevant evidence: Yes