Based on HongKong movie WuJianDao, this movie is quite humorous and filled with action. I felt little bored mid-way through the movie. Director Martin Scorsese does not leave one disappointed in the end though. Acting by Leonardo DiCaprio is really good, though he cant be compared in a similar role with Robert DeNiro.
The movie is set in South Boston where undercover cop Billy (DiCaprio) infiltrates into mob run by Frank Costello (Jack Nicholson) while his man Colin (Matt Damon) infiltrates into the Police squad.
What happens next is filled with action and humour.
The end is what is highly unexpected for those who have seen the original. Watch the movie in nearest halls to know the ending. I do not want to spoil.