Movie 5: Start world plus
Movie 6: Get to the boss of world plus
Movies 7 & 8: Beat the boss of world plus
Level x-6: Get 54 stars
Level x-7: Get 63 stars
Level x-8: Get 72 stars
Level x-9: Get 81 stars
Level x-10: Get 90 stars
Levels x-11 and x-12: Collect all presents on the first 10 worlds