By Peter Lesser (staff@latinospost.com) | First Posted: Aug 22, 2013 12:22 PM EDT

Sequels have become a taboo. If a film is adored and loved, why tarnish it with a follow-up that's not as strong? It can leave a dark stain on an entire series.  Sure it's an easy way for studios to rake in the dough, but at what cost? Is it worth compromising the integrity of the original classic? Economically, this makes perfect sense, however, that doesn't help ail the woes of fans that suffer every time their favorite flicks receive additional installments for monetary gain.

Not all sequels flop. There are several that stand up to their predecessors or even surpass their brilliance, but it's rare. More often than not, a simple '2' tagged at the end of any movie title should be taken as a warning. But now as production on "The Avengers" sequel is underway, fans ignore that pesky little '2' and focus on what's going to make it bigger and badder than the first.

To begin, writer/director Joss Whedon talks about how Ultron, one of the most dangerous and capable robot villains in the Marvel universe, will play into the sequel.

"I knew right away what I wanted to do with him," Whedon said during an interview with Entertainment Weekly. "He's trying to destroy the Avengers... he's got a bee on his bonnet. He's not a happy guy, which means he's an interesting guy. He's got pain. And the way that that manifests is not going to be standard robot stuff. So we'll take away some of those powers because at some point everybody becomes magic, and I already have someone [a new character, Scarlet Witch] who's a witch."

Speaking of Scarlet Witch, IGN reports that Elizabeth Olsen is now the favorite to snag the role. She's best known for her work in "Liberal Arts" and "Martha Marcy May Marlene." She's also set to star in Spike Lee's remake of "Oldboy" and Gareth Edwards' "Godzilla."

Marvel's "The Avengers: Age of Ultron" hits theaters May 1, 2015.

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