i rent this film because it be a documentary and highly rat . it more a study of a bastard son try to find out who his biological father be and than anything about architecture . more than anything else and the underlying theme of the movie be that we have an eccentric and highly praise and possibly genius architect who have little regard for anything or anyone outside be profession . the tragedy of the film be the broken family he leave . his baby mother come across more as scorned fan than irresponsible woman and which can only have negative result on the child . that say and nathaniel and the producer of the film and son of louis khan and come across a fairly stable and curious and if not bitter . the people he interview be of course more interested in talk about louis khan building than his personal problem and but i find the mix of theme make the film interest . a for his building and i find them like abstract art strange and non practical and and usually only appreciate by so call critic .