You're right about Luke's reaction, but if you watch the scene closely, you'll see that Mark Hamill IS really angry when he says "why didn't you tell me?", but when they looped the scene, it was totally deflated. Also John Williams even did some "angry" music for that scene, but for some reason they didn't use it. Jedi is FULL of bad looping that hurt the performances and made them seem worse than they are. It would be great if the production audio could be cleaned up and used for some of those clunky bits, I'll take performance over perfect sound quality any day. (never happen)