The absurdly charming one-time Ghostbuster and Blues Brother Dan Aykroyd was in the Empire office today for a webchat, and as well as shaking the hand of everyone in the building (including a bewildered delivery man) and being an all-round hero, he also answered a few questions. As you might have guessed, a couple were about the much-talked-about Ghostbusters 3 , and here are some interesting tidbits about just that. [Talking about the reclusive Rick Moranis ] "If we can get the script to Ghostbusters 3 right, then it would definitely have Moranis as a major component. None of us would want to do the movie without having him as a participant." Even more intriguingly, Aykroyd hinted that Bill Murray may not return as Peter Venkman, and that the character could be played by a different actor, a la Jack Ryan. [Talking about Ghostbusters 3 generally] "The script must be perfect. We cannot release a film that is any less than that. We have more work to do."