Why does no one get that Phil is sleeping with Larry's wife?
I keep reading through all these (admittedly poignant) threads about this film's themes of God and experiencing life and the like, but no one seems to understand the entire basis for Phil's depression, and the entire reason he brings up a conversation regarding regret with Bob.
Phil is sleeping with Larry's wife. At the end, when he answers the phone and says "No, you just missed him," he's talking about Larry. And the last thing he says before he hangs up is "I love you too."
The film, to me, is less about man's search for God than it is about our consistent battle with our frail, flawed human existences in the face of such an inescapable concept as "God." And it's pretty much summed up in that final exchange on the phone, I feel, in conjunction with Phil's conversation with Bob.
Anyway, great film, great play, great work all around.