A few fantasy and young adult works have risen to wide popularity among adults, yours truly included. One of these is Susan Collins' Hunger Games series: The Hunger Games, Catching Fire, and Mockingjay. Collins' genre-setting books are the best dystopian YA offering, in my opinion.
The first book was ably translated to film in 2012 starring Jennifer Lawrence and Josh Hutcherson. The second installment is being released November 22. Squee! Here is the final trailer for the film: