Mark Ruffalo and Scarlett Johannson talk about the training they went through for "Marvel's The Avengers," now available on Blu-ray 3D, Blu-ray and DVD!

Tom Hiddleston chats with Marvel.com Assistant Editor Marc Strom about his role as the menacing Loki in "Marvel's The Avengers," available now on Blu-ray 3D, Blu-ray and DVD!

Maria Hill reflects on what went wrong in an alternate opening from "Marvel's The Avengers," available on Blu-ray September 25!

Robert Downey, Jr. steps into the spotlight in the latest featurette clip from "Marvel's The Avengers," on Blu-ray and DVD September 25!

Joss Whedon discusses building the S.H.I.E.L.D. Helicarrier in a new featurette clip from the "Marvel's The Avengers" Blu-ray, available September 25!

Director Joss Whedon talks about working with Chris Evans (Captain America) and Mark Ruffalo (Hulk) in this clip from a new featurette on the "Marvel's The Avengers" Blu-ray, available September 25!

Bruce Banner (Mark Ruffalo) contemplates the nature of the Hulk in this deleted scene from "Marvel's The Avengers"! Get it on Blu-ray September 25 to catch even more deleted scenes and featurettes!

Get a glimpse of the villainous Thanos in this new clip from "Marvel's The Avengers," on Blu-ray & DVD September 25!

Scarlett Johansson talks about jumping back into the fray as the Black Widow in "Marvel's The Avengers," in theaters and IMAX 3D May 4!

Earth's Mightiest Heroes are ready to take action in the latest featurette from "Marvel's The Avengers," in theaters and IMAX 3D May 4!

Calling all agents! S.H.I.E.L.D. has a new mission for you. Watch the transmission for more details and head to SHIELDops.com now!

Loki gives Nick Fury a piece of his mind, but the S.H.I.E.L.D. Director isn't phased in this clip from "Marvel's The Avengers," in theaters and IMAX 3D May 4!

Avengers fans assembled across the country to be among the first to see "Marvel's The Avengers" on April 14, now check out their reactions!

Tony Stark (Robert Downey, Jr.) and Loki (Tom Hiddleston) match wits in this new clip from "Marvel's The Avengers," in theaters and IMAX May 4!

The Black Widow gets called in from a mission in this new clip from "Marvel's The Avengers," in theaters and IMAX May 4!

Watch the first trailer for "Marvel's The Avengers", in theaters May 4, 2012.

Examine Samuel L. Jackson's role in bringing the team together in a new clip from the "Assembling the Ultimate Team" vignette available on the "Marvel's The Avengers" Blu-ray September 25!

Check out an all-new clip from "Marvel One-Shot: Item 47," starring Lizzy Caplan and Jesse Bradford as a modern-day Bonnie and Clyde, available exclusively on the "Marvel's The Avengers" Blu-ray September 25!

Agent M talks about Marvel's newest One-Shot during the 'Item 47' Scavenger Hunt at Comic-Con International San Diego.

Tony Stark gives Loki a headcount of Earth's Mightiest Heroes in this new TV spot for "Marvel's The Avengers," assembling in theaters May 4!

Enchantress and Loki team up to leave Captain America, Thor, and Iron Man without their powers in this clip from "Powerless," an un-aired episode available exclusively on "The Avengers: Earth's Mightiest Heroes!" Vol. 5, on DVD September 25.