When does Batman: The Long Halloween return?

The film is directed by Chris Palmer and stars the voices of Jensen Ackles, Josh Duhamel and Naya Rivera. Part 1 is the 44th film, and Part 2 is the 45th film of the DC Universe Animated Original Movies. In both parts of the film, Batman attempts to unravel the mystery of murders committed on holidays throughout the year, and uncover the true identity of the serial killer Holiday.