The World Premiere of "Ghostbusters: Afterlife," was held at the AMC Loew's Theater on the Upper West Side.

The film stars Paul Rudd, People Magazine's newly anointed "Sexiest Man Alive."

Rudd remembered the film that started it all.  

“It's so crazy to be here and talk on Ghostbusters, because I was a kid when it came out and it was major," Rudd said on the red carpet. "It was major to everybody my age. We all saw it many times. So to be on set and see proton packs and see just props, and then like, even now look down that aisle there and then like, okay, that's Bill Murray standing there.”

Actor Bill Murray starred in the first "Ghostbusters" film that was released in theaters 37-years ago. He's in the new film, too.

“That first movie is pretty damn funny," said Murray. "And the outfits are funny, and the car is cool. And you know, we blow things up and then there's that marshmallow man, that marshmallow man still kills me. That's still one of the funniest things I've ever seen that guy walking down Broadway.”

In "Ghostbusters: Afterlife" a single mom and her kids arrive in a small town and discover they share a connection to one of the original Ghostbusters.

Director Ivan Reitman directed the first "Ghostbusters" film and his son Jason took the reigns for the new movie.  

“You know, I made a career of independent films and all of a sudden I found myself on the set with terror dogs and Ecto one and proton packs. And it's a thrill. I feel like I got to make a really personal story just like "Juno" in "Ghostbusters: Afterlife."

Actor Carrie Coon said Jason Reitman was the right director for the job.

“It felt like an independent film to make because he brings his love of actors and his desire to make the scenes feel truthful to do even the biggest movie and he was the perfect person to do it," said Coon.

"Ghostbusters: Afterlife" is in theaters on November 18.