New video and photos from the set of Joss Whedon's The Avengers has inevitably leaked online.  Spoiler alert: it shows two main characters fighting other characters and there's an explosion.  Hopefully I didn't just ruin the movie for you.

Hit the jump to check out the video from the set along with a new photos.  The film stars Robert Downey Jr., Chris Evans, Chris Hemsworth, Jeremy Renner, Mark Ruffalo, Scarlett Johansson, and Samuel L. Jackson.  The Avengers opens in 3D on May 4, 2012.

Video courtesy of NewsNet5 and CBM.

 

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If you need some explanation of what you just saw, here's NewsNet5's description:

"The people who Captain America and Thor are fighting are wearing special suits, which will then be used with computer animation to turn them into aliens in post-production."

"In the video, you can see some of the outtakes, as a stunt double helps actor Chris Evans (Captain America) go through some of the fight scenes and Chris Hemsworth (Thor) drops a hammer that gets tossed to him in the middle of the scene.

The fight scene is just the latest event for downtown visitors to see at the set on E. 9th Street. On Thursday, explosions blew up the façade of an Acura dealership that had been built for the movie, and earlier in the week a series of explosions rocked downtown."

Here’s The Avengers production announcement which features the relevant cast/plot info:

Robert Downey, Jr. (“Iron Man,” “Iron Man 2″) returns as the iconic Tony Stark/Iron Man along with Chris Hemsworth (“Thor”) as Thor, Chris Evans (“Captain America: The First Avenger”) as Captain America, Jeremy Renner (“Thor,” “The Hurt Locker”) as Hawkeye, Mark Ruffalo (“The Kids Are Alright”) as Hulk, Scarlett Johansson (“Iron Man 2″) as Black Widow, Clark Gregg (“Iron Man,” “Thor”) as Agent Phil Coulson, and Samuel L. Jackson (“Iron Man,” “Iron Man 2″) as Nick Fury.  Set for release in the US on May 4, 2012, “Marvel’s The Avengers” is the first feature to be fully owned, marketed and distributed by Disney, which acquired Marvel in 2009.

Continuing the epic big-screen adventures started in “Iron Man,” “The Incredible Hulk,” “Iron Man 2,” “Thor,” and “Captain America: The First Avenger,” “Marvel’s The Avengers” is the super hero team up of a lifetime. When an unexpected enemy emerges that threatens global safety and security, 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.

Based on the ever-popular Marvel comic book series, first published in 1963, “Marvel’s The Avengers” brings together the mightiest super hero characters as they all assemble together on screen for the first time. The star studded cast of super heroes will be joined by Cobie Smulders (“How I Met Your Mother) as Agent Maria Hill of S.H.I.E.L.D., as well as Tom Hiddleston (“Wallander”) and Stellan Skarsgård (“Angels & Demons,” “Mamma Mia!”) who will both reprise their respective roles as Loki and Professor Erik Selvig from the upcoming Marvel Studios’ feature “Thor.”