The Godfather

$5000
X,Y,X,X,Y, click LEFT ANALOG STICK.

Full ammo
Y, LEFT, Y, RIGHT, X, CLICK RIGHT ANALOG STICK

All Movies
Pause the game and enter Y,X,Y,X,X LEFT ANALOG STICK.

Dillinger
You must purchase 3rd upgrade for Tommy Gun.

Street Sweeper
You must purchase 3rd upgrade for Shotgun.

Luca's Demise Clip
You must get 30 Film Reels.

Full Health
LEFT, X, RIGHT, Y, RIGHT, click the Left Analog stick.

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.