The greatest risk of a movie like The Best Exotic Marigold Hotel would be the one-dimensional fetishizing of the country, where India is held up as a magical bazaar. Thankfully, the movie doesn't do that.
The Best Exotic Marigold Hotel is the kind of movie they seldom make anymore -- except in England. When they try to do it in America, you wind up with something like Garry Marshall's New Year's Eve -- or worse.
It's really very fortunate that the principal cast have remained with Harry Potter from tip to tail, because otherwise the series has transformed so much, aesthetically and tonally, as to appear schizophrenic.
There aren't many people working in films right now who have the mastery of droll, deadpan humor that Bill Nighy possesses. So Wild Target should be right up his alley. It is. Unfortunately, that alley is mostly a dead-end affair.