If you've seen K-Pax then you'll know what it's like when a film with a great premise and fully committed wonderful actors manages to create a reverse alchemy- a movie which is less than the sum of its parts.
Lance is intense and fascinating to watch as ever, and his face carries the burden of world weary regret wonderfully, but no-one else can quite reach the bar he sets.
The two-handed sessions are interesting, but never quite reach the heights of true insight, being entertaining rather than revelatory.
The main theme of the nature of Fate is fascinating, and the premise sound, but as others have noticed it would have made for a wonderful 30 minutes rather than a rather laborious 90.
Watch it by all means, but see it as a dress rehearsal for a potential classic short film rather than the rather vapid exercise it turns out to be.