Even as Dan Aykroyd long championed another "Ghostbusters" sequel, Bill Murray famously resisted a return to the franchise, which made the news of his cameo in Paul Feig's reboot pretty surprising, to say the least. So what brought Murray around?

It turns out the involvement of stars Kristen Wiig and Melissa McCarthy did the trick. “I like those girls a lot,” he told Vulture. “I mean, I really do. They are tough to say no to. And Paul is a real nice fellow.”

Still, Murray admitted that he had to give the project some long, serious consideration. I thought about it for a very long time,” he said. "Like, many, many months. No, that’s not right. I was seriously thinking about this for years, really … It kept eating at me, and I really respect those girls. And then I started to feel like if I didn’t do this movie, maybe somebody would write a bad review or something, thinking there was some sort of disapproval [on my part].”

Although the comedy icon didn't offer any details about his role, it's been rumored he'll play a professional skeptic who sets out to debunk the Ghostbusters.

Opening July 15, 2016, the film also stars Kate McKinnon, Leslie Jones, Chris Hemsworth, Michael K. Williams and Neil Casey,