This isn't really a review. I just wanted to include some helpful information about the films that is lacking in the product description. I hope this is useful.
INTERNAL AFFAIRS - 1990 - 115 minutes - Director: Mike Figgis - Starring: Richard Gere, Andy Garcia - Genre: Crime, thriller - Plot: An Internal Affairs agent is assigned to investigate a charming but corrupt cop, in this deadly battle of wills. R
BLACK RAIN - 1989 - 125 minutes - Director: Ridley Scott - Starring: Michael Douglas, Andy Garcia - Genre: Crime, action - Plot: Two NYPD cops get caught up in a gang war between the Japanese mafia, the Yakuza. R
ONCE UPON A TIME IN AMERICA - 1984 - 229 minutes - Director: Sergio Leone - Starring: Robert De Niro, James Woods, Elizabeth McGovern - Genre: Crime, epic - Plot: A former gangster returns to his old turf after 30 years, confronting the ghosts in his past. R
THE TOWN - 2010 - 125 minutes - Director: Ben Affleck - Starring: Ben Affleck, Rebecca Hall, Jeremy Renner - Genre: Crime, thriller - Plot: A bank robber tries to manage his love life, work life, and the FBI agent trying to bring him down. R
Now let's crunch some numbers. This collection costs $29.99, and contains 4 films. When we divide the price by the number of films, we find a cost of $7.49 per film, a great deal for any crime film fan, for this diverse and excellent set of gangster films. I hope this information is helpful. Cheers!