Because tomorrow marks the birthday of Jack Nance, I’d like to bring attention to “I Don’t Know Jack” (2002), a documentary on cult actor Jack Nance exploring the uniqueness of his character, his unconventional career, and the strange circumstances surrounding the death of his wife in 1991 and himself five years later. The film features interviews with family and friends including Catherine Coulson, Brad Dourif, Dennis Hopper, David Lynch and Charlotte Stewart.