I also watched a documentary there about Montgomery Clift by his nephew.....
The nephew's father, Montgomery's brother, Brooks, recorded on tape every telephone call he had with Monty. Kept every letter and clipping....and had extensive correspondence with folks who wanted to write about Monty. the nephew plays some of the recordings and has gone through an entire room of letters, etc.
My favorite part was when the nephew talked to Jack Larson who told a very funny story about himself, Monty, and Merv Griffin.