I love Bill Murray. That being said, I must believe that he took the roll of Carson Welsh because his little buddy from St. Vincent, Jaeden Lieberher, was also in Aloha.
As for the other big names, Bradley Cooper, Emma Watson and Rachel McAdams: they showed up, and spoke their lines, but I didn’t feel emotionally invested in any of them except for maybe John Karsinski who spoke no lines whatsoever. His character, Woody delivered the best scenes of the entire movie especially the scene between he and Bradly Cooper.
The other problem is the plot, which is convoluted and even a little silly at times. It was nice that the movie attempted to introduce some Hawaiian myths and customs, but viewed within the context of this movie, it was swallowed up by talks of spies, illegitimate children, villains out the destroy the world and of course relationships.