To get $5,000, pause the game and press Square, Triangle, Square(2), Triangle, L3.
To refill health, pause the game and press Left, Square, Right, Triangle, Right, L3.
To get full ammunition, pause the game and press Triangle, Left, Triangle, Right, Square, R3.
To unlock all movies, just go to the main menu and press Triangle, Square, Triangle, Square(2), L3.