If what Sigourney Weaver said in a recent interview is true, the Avatar actress has spilled some serious spoilers. Channel 4 posted an interview with Weaver, who not only said she might appear in Ghostbusters 3, but let some story details slip as well. Be warned, these could be BIG spoilers, so if you don't want to know, stop here.

"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."

You can watch the entire video interview below.

Related: Original Ghostbusters Cast Has Read Ghostbusters 3 Script: Are They in or Out?

We'll be sure to keep you posted on any new Ghostbusters 3 developments as soon as we have more information.