Well Duvall got his Oscar for a great performance in TENDER MERCIES. My favorite Duvall performance has to be of course his work as the one and only legal advisor that any mob family wish to have that is Tom Hagen in the GODFATHER films.

I agree totally with DonFerro on THX 1138, which after finally seeing it recently, I feel its a lost "gem" of the 1970's. Unlike the "Greedo Shoots First" or any other CGI-created stuff in the SW trilogy, the CGI in THX 1138 didn't distract me.

Other good Duvall performances include his directorial work like ASSASINATION TANGO and the underrated THE APOSTLE(a project he funded from his own pockets) and of course his Oscar-nominated and legendary APOCALYPSE NOW. Other solid performances include FALLING DOWN, OPEN RANGE, THE NATURAL, NETWORK, MASH, and of course his film debut in TO KILL A MOCKINGBIRD. Great f*cking actor!