The first film, voiced by an all-star cast and directed by "Dexter's Lab" creator Genndy Tartakovsky, featured Dracula realizing that humans weren't so bad after all and they weren't really after chasing him with stakes - and the "Hotel Transylvania 2" trailer shows the famous vampire as a grandfather!

The first movie featured some of the biggest names in entertainment: Sandler, Gomez, Samberg, "Hitch" star Kevin James, "The Nanny" Fran Drescher (certainly one of the most recognizable voices in entertainment), "Boardwalk Empire" actor Steve Buscemi, SNL alums Molly Shannon, David Spade, Chris Parnell and Jon Lovitz and even CeeLo Green, who's being replaced by Keegan-Michael Key - but all the rest of the "Drac Pack" is back for the "Hotel Transylvania 2" trailer!

According to Hollywood Life, the "Hotel Transylvania 2" trailer shows off a bit of what's happening in the sequel about a hotel for monsters: in the new preview, it is shown that Drac is very worried that Dennis, his half-human grandson, isn't showing any signs of being a vampire at all ... and so he basically forces the toddler to fly.

The Huffington Post explains that there's a whole new side of these monsters the world has yet to see: in the "Hotel Transylvania 2" trailer we can see that the strict no-humans policy has become much more flexible, and now they're also allowed in along with the monsters, surely creating a lot of funny situations on the way!

According to Flickering Myth, there's one major addition to the cast of the "Hotel Transylvania 2" trailer: legendary comedy actor and director Mel Brooks, who's set to play Vlad, Dracula's grumpy father, who's set to make things more complicated than they already are ... because he's a very old, old-fashioned kind of vampire who doesn't know his great-grandson is half-human and would definitely not accept it.

Watch the "Hotel Transylvania 2" trailer below!