Enjoyed both Daniel Radcliffe and Jon Hamm but to have Hamm play the older Radcliffe? I mean he's graduated medical school and working as a young doctor so he'd be in his 20's and 5'5" but in his forties he's 6'2"? Dark comedy/drama - it was different lol and Radcliffe does a brilliant Jon Hamm imitation. On the serious side. It's interesting to see how the young doctor begins his journey optimistically and wanting to change the world, how he becomes jaded and the old doctor realizes his regrets and wishes like many of us do that we could go back and talk to our younger self and change the course our lives.