This is the trailer of the upcoming Artists & Alchemists documentary about the resurgence of 19th century chemical photography:
From the A&A blog:
"Artists & Alchemists is a feature documentary film that explores the resurgence of 19th century chemical photography. By following ten renowned photographers creating daguerreotypes, ferrotypes and wet plate collodion photographs, Artists & Alchemists documents the sacrifice and personal vision needed to revive these once forgotten art forms."