Watch: Old and New GHOSTBUSTERS Unite on JIMMY KIMMEL LIVE

Yesterday was Ghostbusters Day, and Sony Pictures released a few new featurettes for Paul Feig's upcoming Ghostbusters film that concentrated on the new Ecto-1 and the four leading ladies of the movie. Those actresses — Kristen Wiig, Melissa McCarthy, Leslie Jones, and Kate McKinnon — appeared on Jimmy Kimmel Live last night, and were joined by special guests Bill Murray, Dan Aykroyd, Ernie Hudson, and Annie Potts.

Murray in particular had some nice things to say about the new movie:

"This is a tough movie to pull off because it's a big concept. There's a lot on the plate, there's a lot of expectation, and Danny and I and Annie and Ernie were just screaming and cheering like we were at a sporting event at the end of it."

 Check out some videos from the show below:

Melissa McCarthy, Kristen Wiig, Kate McKinnon and Leslie Jones answer questions about each other and are surprised by some very special visitors.

Past and present Ghostbusters unite as Bill Murray, Dan Aykroyd, Ernie Hudson and Annie Potts are joined onstage by Melissa McCarthy, Kristen Wiig, Kate McKinnon and Leslie Jones.

Ray Parker Jr. plays the Ghostbusters theme song while Bill Murray, Dan Aykroyd, Melissa McCarthy, Kristen Wiig, Kate McKinnon, Leslie Jones, Ernie Hudson and Annie Potts dance.