In the first Avengers movie, Mark Rufallo's version of Hulk was both destructive and funny in the few moments he was on screen. Will that same formula work for a two-hour film?

The last two Hulk films released in 2003 and 2008 were either panned and raved on by moviegoers, although most of them agreed that the second one, starred by Edward Norton as Bruce Banner, was slightly bettter. 

Lou Ferrigno became ultimate spoiler when he revealed that another Hulk film starring Mark Ruffalo is in the pipeline after the Avengers 2. 

"The reason is because the Hulk, in the last Avengers, he saved the day and was the star of the movie so Disney agreed a Hulk movie, so I think it will be done after the Avengers, the second one," Ferrigno told Flicks and the City. Lou played Bruce Banner in "The Incredible Hulk" series from 1977 to 1982. 

The fact that Robert Downey Jr. reprised his role as Iron Man is an indication that all the cast of the original Avengers are on board, but between now and 2015 there's no certainty. What's clear at this point is that Joss Whedon will play a big role not just in helming Avengers 2, but also the overall Marvel Cinematic Universe.

Hawkeye will also play a bigger role this time as Jeremy Renner expressed his displeasure over how his part made him walk around like a zombie while under the control of Thor's brother Loki, who will not be returning in the Age of Ultron.

In the comics version, Ultron was created by Hank Pym also known as Ant Man. But Whedon already confirmed that Ant Man won't be in the film. There's a theory that Iron Man will be Ultron's creator but that report has yet to be confirmed. 

There will also be new additions to the cast like Scarlet Witch and Quicksilver. 

As for Hulk, we can all expect him to do what he does best. Hulk Smash!