Yes, this is a good movie(when compared to all the crap we see in theaters these days) Yet it has its own faults. The first one is that it have got nothing new, all the concepts shown are very old and we saw them in most old movies and second one is that there is not even a single character which is serious, and every one talk aloud.
RP could have done more home work and study how brokers manage their business. Per my knowledge no broker will say openly that he is a broker.