When people gamble at a casino, they usually change cash into colorful little discs that look like chips. They might clap when someone wins at a slot machine or cheer when their friends win big at the tables, but the truth is that winning at a casino is mostly a matter of chance.

That’s why casinos spend a lot of money and time on security. Elaborate surveillance systems offer an eye-in-the-sky view of the entire gaming floor, with cameras that can be focused on specific patrons by workers in a room full of banks of monitors. There are also a variety of other systems, including hidden microphones that can pick up on the tiniest sounds.

Something about gambling (probably the presence of large amounts of money) seems to encourage people to cheat or steal their way into a jackpot, so casinos spend a huge amount of time, effort and money on security. But despite all of this, some people still try to game the system.

The most successful casinos are those that have a wide selection of games for players to choose from. This includes classic table games like blackjack and poker, as well as more exotic titles. Ideally, a casino should offer a mix of games from the best developers in the industry.

Robert De Niro and Joe Pesci star as Ace and Nicky in Casino, a movie that is not only set in Sin City but is a history lesson about how organized crime lost control of the desert city. While many movies only show the glamour and glitz of Vegas, Scorsese’s film digs deep, revealing how mob-controlled casinos gave way to huge gambling corporations.