This comes from an
excellent article, which I think nails the actual Top 5, but I wondered if Filmspotting Nation has some more great contributions.
Their Top 5...
5. Show scenes that are not in the movie
4. Use the same damn songs over and over again
3. Just go ahead and ruin the entire movie
2. Lie about who the star is
1. Completely lie about what kind of movie it is