The Godfather Cheats

The Godfather Cheat: Full ammo
Y, LEFT, Y, RIGHT, X, CLICK RIGHT ANALOG STICK

The Godfather Unlockable: All Movies
Pause the game and enter Y,X,Y,X,X LEFT ANALOG STICK.

The Godfather Unlockable: Dillinger
You must purchase 3rd upgrade for Tommy Gun.

The Godfather Unlockable: Street Sweeper
You must purchase 3rd upgrade for Shotgun.

The Godfather Unlockable: Luca's Demise Clip
You must get 30 Film Reels.

The Godfather Cheat: Full Health
LEFT, X, RIGHT, Y, RIGHT, click the Left Analog stick.

The Godfather Hint - Easy Cash And Respect
Just another tedious farming method. If you happen to find a racket truck outside your safe house(s), start a ruckus by shooting it so the truck's back door opens. Whack the goons, take the money left over, and interrogate the driver. Head back to your safe house and save the game. Heading back outside afterwards, another racket truck might spawn/appear allowing you to repeat the process.

The Godfather Hint: Easy Extortions

If you want to easily extort businesses, all you have to do is take out that particular neighborhood’s family compounds and warehouses. By doing so, the businesses in the area will no longer need be shaken down, and you’ll be able to extort them much easier.