Trinity Seven: Eternity Library to Alchemic Girl is the new original movie that spans a rather short 55 minutes. In that time, you're given what's pretty much standard: fan service, cute girls, and sailing boats. This time around, the story focuses on Arata and Lillith (not best girl, by the way).
With a relatively standard setting, standard art and characters, what really makes this better for me is that the soundtrack ended out pretty well. Also cute girls doesn't ever hurt (thanks KyoAni).
In the end, this movie is really only worth watching if you're a huge fan of Trinity Seven or you just really like the fan service/cute girls involved in the show.
