Also of note: the scene begins with our first taste of an evil Jarvis. This could be a clue as to how Joss Whedon will give birth to Ultron in the sequel, The Avengers: Age of Ultron

With the most significant change, as pointed out by CBM's Guardian Angel, our first look an unused female superhero, Wasp (Janet van Dyne). She can see her at the 17-second mark.





Early in, Nick Fury (Samuel L. Jackson) and his group go about recruiting the superhero team. After Fury has enlisted Steve Rogers (Chris Evans) help in order to recover the Tesseract from Loki, the film cuts to our first look at Tony Stark/Iron Man. He is underwater attaching a new arc reactor to Stark Tower's power line. But, Federico D'Alessandro's first animatic below, shows a much different intro for Iron Man. In the early version Iron Man would've fought never-used supervillain with Man with no arms and no legs. At the end of each nub, is some sort of attachment device. As the clip plays out you will see the amputee attach robotic hands and legs, thus making him a supervillain.In this second clip, Iron Man makes his introduction earlier in the film, just after Loki (Tom Hiddleston) has escaped with the cube, and his mind-controlled lackeys, Hawkeye (Jeremy Renner) and Professor Selvig (Stellan Skarsgård). In this version, Iron Man appears at S.H.I.E.L.D.'s secret underground government research facility. He is in hot pursuit of Loki, as the underground lab is crumbling all around him. Loki is seen trying to escape via a subway car. Watch the video below to see what happens.The third animatic, involves Loki and Tony Stark's battle of wits at Stark Tower. But in this early version, the conversation is quite different, as Tony plays possum. He pretends to be under Loki's mind-altering influence, and pushes the charade too far. You can't fool the God of Mischief!The last animatic, shows the scene in which the gateway is opened to the outer space location where the Chitauri’s army awaits. There a few slight differences than the theatrical version.picks up when an unexpected enemy emerges that threatens global safety and security. And Nick Fury, director of the international peacekeeping agency known as S.H.I.E.L.D., finds himself in need of a team to pull the world back from the brink of disaster. With director Joss Whedon at it's helm, and an ensemble cast including Chris Evans (Steve Rogers), Robert Downey Jr. (Tony Stark), Chris Hemsworth (Thor Odinson), Jeremy Renner (Clint Barton), Mark Ruffalo (Bruce Banner), Scarlett Johansson (Natasha Romanoff), Clark Gregg (Agt. Phil Coulson), Cobie Smulders (Maria Hill), Samuel L. Jackson (Nick Fury), with Tom Hiddleston (Loki), and Stellan Skarsgard (Professor Erik Selvig).