Major Spoiler! If you are a shut in or a recluse whose been waiting anxiously to see Iron Man 3 on Blu-ray because you hate the theatrical experience, you might want to come back to this story after September 24. Cause we're about to give away a major part of the ending.

During the climactic crescendo of director Shane Black's Marvel Phase Two superhero sequel, Tony Stark (Robert Downey Jr.) finally has that bothersome shrapnel removed from his chest, which means he no longer needs his Arc Reactor. Screenwriter Drew Pearce has now explained how director Joss Whedon plans to follow-up this story arc in The Avengers: Age of Ultron, which Pearce knew would be the sequel a year before it was announced at Comic-Con 2013.

"We take his arc reactor out, but I think we also make a pretty definite statement that he is Iron Man. And although Joss isn't part of the process as such, he saw all the cuts of the movie, so I've got to assume he knows exactly what he wants to do with Tony in [The Avengers: Age of Ultron] and how we've left [Tony Stark] is going to help that, not hinder it."

Drew Pearce went onto discuss The Avengers: Age of Ultron, revealing new story details along the way.

RELATED: Avengers: Endgame Has Set an Unwanted Oscars Record
"Obviously, Age of Ultron suggests that in The Avengers 2 there will definitely be some level of, if not giant evil robots, then definitely a robotic or artificial intelligence entity. I may or may not have been excited about it for a year. Not every aspect of Phase Two is planned already, but Joss has been thinking about it for a year and Kevin Feige has been thinking about what The Avengers 2 does since the first film. The scale I think they're going to reach for is going to be truly epic, which is incredible when you consider how epic Marvel's The Avengers was. But on a character level the story will actually be smaller, or at least more intimate. It's hard to put a list together of all the things Joss is good at as a writer, but definitely in the top five would be dealing with the shifting dynamics of a large group of characters."

The writer isn't sure how Scarlet Witch and Quicksilver will come into play, though.

"The core of Avengers will still be our Avengers. There will, of course, be other characters in the mix, but I think what Joss is really good at is creating a family and then pulling them apart, and to that end he's got so much more to do with the family he established in Avengers. So I suspect that the first port of call in that movie will be kicking the shit out of those characters to see how they cope as a group."

Lastly, Drew Pearce warned fans not to believe anything they've read about the film online, teasing that Ultron could appear any in one of the upcoming Phase Two films before he makes an appearance in The Avengers: Age of Ultron.

"There is a hell of a lot of rumors, though. Ultron may be something that appears in Guardians of the Galaxy, or it might appear in the Thor universe. I've read a lot of stuff online, and I don't think anyone has got close to the real plan yet."

What about you? Are you excited yet?

B. Alan Orange at Movieweb
B. Alan Orange