Here is the full list of all 12 The Misadventures of P.B. Winterbottom achievements.
Completed all recording and time challenges in the bonus shorts.
Completed 10 time challenges in the bonus shorts.
Completed the "Savory Salutations" movie level.
Completed the "The Ticking Tarts" movie level.
Completed the "Dangerously Delicious!" movie level.
Completed the "Spelunking for Sweets" movie level.
Completed all 5 movie levels.
Stole 10 pies.
Completed 10 recording challenges in the bonus shorts.
Completed 20 recording challenges in the bonus shorts.
Completed 20 time challenges in the bonus shorts.
Burned, smashed, or erased 50 clones.