OK, lets start with the top 20:
1. The Godfather - The Penisfather
2. The Shawshank Redemption - The Vagina Redemption
3. The Godfather: Part II - The Penisfather: the second vagina
4. Buono, il brutto, il cattivo, Il - ??? - Buono, il penis, il vagina, Il
5. Pulp Fiction - Pulp Vagina, Penis Fiction, Pulp Penis
6. Schindler's List - Schindler's Penis
7. Star Wars: Episode V - The Empire Strikes Back -- Penis Wars: Episode 69 - The Penis Cums Again
8. One Flew Over the Cuckoo's Nest - One Flew Over the Cuckoo's Vagina
9. Casablanca - Sex changing beach
10. Shichinin no samurai - ??? - Shichinin no Penis
11. The Lord of the Rings: The Return of the King -- The Lord of the Dildos: The Return of the Penis
12. Star Wars - Penis Wars
13. 12 Angry Men - 12 Angry Penis's
14. Rear Window - Rear Penis
15. Goodfellas - Good Penis's
16. Raiders of the Lost Ark - Raiders of the Lost Vagina
17. Cidade de Deus - Cidade de Penis
18. The Lord of the Rings: The Fellowship of the Ring -- The Lord of the Dildos: The Fellowship of the Penis
19. C'era una volta il West - ??? - C'era una vagina il West
20. The Usual Suspects - The Usual Vaginas

to be continued