Just for the record, deo838 is incorrect. Leonard Nimoy does in fact play just one character here, and it is Theo Van Gogh. On occasion during his eulogy for his late brother, Theo does an "impression" of Vincent, but that's exactly what it is: Nimoy playing Theo who every now and then imitates Vincent. He is also incorrect to refer to this as a filmed version separate from the stage play. This is a videotaped performance of the play as given in Minneapolis' Guthrie Theater.
Those points aside, this is indeed a very interesting program, and goes beyond just the play. Afterwards, the camera follows Nimoy backstage and into his dressing room, where he speaks to the camera, summarizing the remainder of Theo's life. Then the actor launches into a discussion of the artist, including location footage. This sequence is highly reminiscent of the episode of the Nimoy-hosted/narrated series "In Search Of..." about Vincent, and which the actor himself scripted. Fascinating from beginning to end.
