Unlockables:
Enter the codes at the correct place. Film Reels should be entered on the main menu and the others should be entered in the pause menu.

Y,X,Y,X,X Left Analog Stick - Gives all film reels
X,Y,X,X,Y, click left analog stick - $5000
Y, left, y, right, x, click right analog stick - Full ammo
left, x, right, y, right, click left analog stick - Full health

Infinite Ammo:
Become Don of NYC

Guns:
Dillinger- Buy 3rd upgrade for Tommy Gun
Street Sweeper - Buy 3rd upgrade for Shotgun
Saturday Night Special - Buy third .38 Snub Nose upgrade
Assassin's Pistol - Buy third Pistol upgrade
Python - Buy third Magnum upgrade

Flim Archive:
To unlock the movies complete each of the mission

Movie 1 - Complete "The Alley"Mission
Movie 2 - Complete "Enforcer"Mission
Movie 3 - Complete"Grave Situation"Mission
Movie 4 - Complete"Sleeping With The Fishes"Mission
Movie 5 - Complete"The Don Is Dead"Mission
Movie 6 - Complete"Intensive Care"Mission
Movie 7 - Complete"Fireworks"Mission
Movie 8 - Complete"Death To The Traitor "Mission
Movie 9 - Complete"Horseplay"Mission
Movie 10 - Complete"A Recipe For Revenge"Mission
Movie 11 - Complete"Now it's Personal"Mission
Movie 12 - Complete"The Silent Witness"Mission
Movie 13 - Complete"Sonny's War"Mission
Movie 14 - Complete"Change Of Plan"Mission
Movie 15 - Complete"Order To Kill"Mission
Movie 16 - Complete"It's Only Business"Mission
Movie 17 - Complete"Baptism By Fire"Mission
Movie 18 - Collect 10 Film Reel
Movie 19 - Collect 20 Film Reel
Movie 20 - Collect 30 Film Reel
Movie 21 - Collect 40 Film Reel
Movie 22 - Collect 55 Film Reel
Movie 23 - Collect 70 Film Reel
Movie 24 - Collect 85 Film Reel
Movie 25 - Collect 100 Film Reel

Unlimited Money and Respect:
After completing the first mission, save your game and quit before answering the phone downstairs. Reload your game and you will recieve the $500 and 500 respect you got from that quest again. You can resave and reload to get these rewards as many times as you would like.