According to Yahoo, these were the most viewed movie trailers of 2009. (For a big “HUH?”, check out No. 8, which starred Debbie Gibson and Lorenzo Lamas:

1. Twilight 2: New Moon (Summit)
2. Transformers 2: Revenge Of The Fallen (Paramount)
3. 2012 (Sony)
4. Terminator Salvation (Warner Bros)
5. Harry Potter And The Half-Blood Prince (Warner Bros)
6. G.I. Joe (Paramount)
7. Star Trek (Paramount)
8. Mega Shark vs Giant Octopus (The Asylum)
9. Avatar (Fox)
10. Up (Disney)