The Godfather: The Game/Secrets

Cheat codes
Enter these when paused. You can only enter each code once every five minutes.

PlayStation 2

 * psx: S, psx: C, psx: S, psx: S, psx: C, psx: L3 : $5,000
 * psx: C, psx: Left Dpad, psx: C, psx: Right Dpad, psx: S, psx: R3 : Full Ammo
 * psx: Left Dpad, psx: S, psx: Right Dpad, psx: C, psx: Right Dpad, psx: L3 : Full Health
 * psx: C, psx: S, psx: C, psx: S, psx: S, psx: L3 : Unlock All Movies

PlayStation Portable

 * psx: S, psx: C, psx: S, psx: S, psx: C, psx: L1 : $1000
 * psx: C, psx: Left Dpad, psx: C, psx: Right Dpad, psx: S, psx: R1 : Full Ammo
 * psx: Left Dpad, psx: S, psx: Right Dpad, psx: C, psx: Right Dpad, psx: L1 : Full Health

Xbox/Xbox 360

 * ,, , , , : $5000 (original Xbox only)
 * ,, , , , : Full ammo
 * ,, , , , : Full health
 * ,, , , , : Gives all film reels

Windows
Enter the pause menu by pressing ESC, then type the following:
 * cuneo: $5000
 * stracci: Full Ammo
 * corleone: Full Health
 * tattaglia: Unlock Movies

Movie Clips
To unlock the movies complete each of the missions:

Infinite Ammo
Become the Don of New York and your ammo will never run out.

Unlimited Money and Respect glitch
After completing the first mission, save and quit before answering the phone. Reload and you will get $500 and 500 Respect for the mission you just finished. You can save and reload as many times as you like. This may not work on all versions.