Pat Saperstein Deputy Editor September 15, 2022 1:30 pm Bylines:By Pat Saperstein Brett Morgen went through a lot to make “Moonage Daydream.” It takes certain amount of obsession to capture on film the essence of the life of David Bowie, the shapeshifting music visionary, artist and actor. For Morgen, known for his work exploring another singular artist with “Kurt Cobain: Montage of Heck,” as well as “The Kid Stays in the Picture” and “Jane,” crafting the first authorized Bowie documentary was a nearly seven-year process. Until it was time to create the encompassing sound mix with help from Bowie collaborator Tony Visconti, he worked mostly alone, weathering both the pandemic and a serious heart attack.