“Trauma”, “survival”, “mistakes”. Nora Dunn made it sound more like she was on the set of Saving Private Ryan than she was doing Saturday Night Live. You could criticise her for banding some strong words about and making a bit of a dramatic comparison, but in a lot of ways, being a young comic actor thrust into a limelight as massive as that must feel like a bit of a warzone. Think about it: you’re being forced to fight for your place, shrug of…