#7 Blasto 6: Partners in Crime
If you head to the apartments in the Citadel's Presidium Commons, you'll find an ad for a movie called Blasto 6: Partners in Crime, featuring the loose cannon Hanar Spectre, Blasto, and his by-the-books Elcor partner. Interact with the poster, and you'll be treated to nearly ten minutes of audio clips from the film.
If you played Mass Effect 2, you may have heard a similar (albeit much shorter) ad for the first Blasto movie, The Jellyfish Stings. That would imply they've made five sequels in the six months that passed between the two games. Guess these movies are really popular.