Hotel Transylvania 2

Hotel Transylvania 2 is a 2015 American computer-animated comedy movie. It was produced by Columbia Pictures and Sony Pictures Animation. This is the sequel to Hotel Transylvania.
Voices.
The movie is starring Adam Sandler as the voice of Dracula and Selena Gomez as Mavis, Dracula's daughter, and features Asher Blinkoff as Dennis.
Plot.
Now that Dracula (Adam Sandler) has opened the Hotel Transylvania's doors to humans, things are changing for the better; however, Drac is secretly worried that his half-human grandson, Dennis, isn't showing his vampire side. So, while Mavis and Johnny are away, Drac enlists his friends to help him put the boy through a "monster-in-training" boot camp. But things really get batty when Drac's cantankerous, old-school dad (Mel Brooks) pays an unexpected visit.