Serpico
Sidney Lumet has his tried-and-tested style, which he remains faithful to today. The cast is also extremely convincing in their roles. Before you read this review and before I spoil you the story, watch the movie, I highly recommend it. Serpico without doubt has excellent dialogoues. Serpico was emotions explosion for me. That movie sticks out in my mind with how good it was. Maybe because I just didn't expect it. You can watch it online here on this website and add your own subtitles if you are not native english speaker.
Storyline of Serpico
Frank Serpico (Al Pacino) is an idealistic New York City cop who refuses to take bribes, unlike the rest of the force. It's why many of his fellow officers considered him the most dangerous man alive!