How does Francis, peter and Jack (personality)changed during the film?

Mmm... Yikes. Good one. Francis begins to accept he doesn't have control over everything and that he's not the perfect human being no matter how much he tries. Peter learns to get over his fathers death and accept his two other brothers, no matter how much he disliked them, he finally believe that his wife is the one he belongs to, even though he didnt think he was in it for the long haul. Jack basically just stays the same, he still pretty messed up, but is living with who he is. They all accept each other, even though there paths are very much apart. <3 x