Hey, Weaver, save something for the movie. Speaking to Channel 4, Dana Barrett spilled all kinds of shit about Ghostbusters 3 that you may not want to read if you'd rather not know whether or not Oscar is going to be Ghostbuster (oops, spoilers alarm!):

I’m afraid to say it [Ghostbusters 3] is happening, I hope people are excited about that. I don’t know if I’m going to be in it, I have had a couple of calls asking ‘would you read the script’.

I know that my little son Oscar – who was kidnapped from me – I think he has grown up to be a ghostbuster.

I might be in it; I see nothing wrong with being in it, although I don’t think I will have a big part. I think Bill Murray has a little more to do with it - he’s a ghost.

http://www.iwatchstuff.com/2009/12/sigourney_weaver_clearly_says.php

Now it's a myth....

http://www.iwatchstuff.com/2010/04/ghostbusters_3.php

Ghostbusters 3 To Begin Shooting In May

http://videogum.com/242591/ghostbusters-3-to-begin-shooting-in-may/behind-the-scenes/