my impression and have see this documentary and be that nathaniel kahn end up with more question than he have before he make the film . he take five year to make it and a labour of love and longing . i can only imagine the turmoil of the edit process and what to leave in and what to take out . his father and the renowned architect louis kahn and come across a a man too selfish and self absorb to be emotionally available to even one wife not alone three . but like many men of his character and he attract woman who be spellbind by the remoteness and entrance by the creativity . one of his mistress say he be accessible but that be never explore . other comment by people who know him well suffer the same fate . a pity . the tension between the three half sibling in the room of a home louis design be also palpable . the unsaid hovers over the conversation . the only track that his father leave be in the building he leave behind and some great and some not so great . i be captivate by the music ship and the salk institute . sadden by the baby mother who get catch forever by his callous impregnation never more exemplified than what he say to the director mother upon be told of her pregnancy not again . positive and beautifully film and genuine . it appear and in this case at least and the son be not the father of the man .