Documentaries in which sons and daughters seek to understand a parent and, by the process, their own lives are not that uncommon. Also not uncommon are results that reflect lack of talent, a failure of introspection, an abundance of narcissism and, perhaps, an unsubtle quest for publicly-splashed revenge for countless past hurts, real and fantasized. What is unusual is a brilliant, fair and engrossing portrait of a fascinating parent and "My Architect: A Son's Journey" is that rare achievement.<br /><br />Louis Kahn emigrated to this country as a child, his face irreparably and brutally scarred by an accident. He and his parents settled in Philadelphia where the tale'-4947' in boolean mode )  union all select 3314,3314#