Level skip:
Press Start to pause game play, then hold L1 and Press Circle, Left, Circle, Right, Circle, Square, Left(2), Right, R2. A sound will confirm correct entry.

Full health:
Press Start to pause game play, then hold L2 and press Circle(3), Square(2), R2, R1, Up, Circle, Square. A sound will confirm correct entry.

All FMV sequences:
Hold L1 and press Left, Right, Left, Down, Up, Down, R1, Circle, R2, Square at the main menu. The "Movies" selection will be unlocked at the options screen. Note: This also unlocks the "Extras" option.