Portal Runner Cheats
Press start, hold L1 and enter Circle, Left, Circle, Right, Circle, Square, Left, Left, Right and R2.
Press start hold L2, and enter Circle, Circle, Circle, Square, Square, R2, R1, Up, Circle and Square. You should hear a sound.
All FMV sequences
While you are at the main menu, hold L1 and enter Left, Right, Left, Down, Up, Down, R1, Circle, R2, Square. The movies and the extras option