New Stills From <i>Captain America</i>, <i>X-Men</i>, <i>Conan</i>, <i>Cowboys &amp; Aliens</i>

MTV News has kicked off its summer movie preview with a photo gallery that includes new images from Captain America: The First Avenger, X-Men: First Class, Cowboys & Aliens and Conan the Barbarian.

Directed by Joe Johnston, Captain America: The First Avenger stars Chris Evans, Hugo Weaving, Tommy Lee Jones, Stanley Tucci, Haley Atwell, Sebastian Stan, Dominic Cooper, Toby Jones and Neal McDonough. It opens on July 22.

Directed by Matthew Vaughn, X-Men: First Class stars James McAvoy, Michael Fassbender, January Jones, Nicholas Hoult, Jennifer Lawrence, Lucas Till, Caleb Landry Jones, Kevin Bacon, Edi Gathegi, Oliver Platt, Jason Flemyng, Rose Byrne and Zoe Kravitz. It opens on June 3.

Directed by Jon Favreau, Cowboys & Aliens stars Daniel Craig, Harrison Ford, Olivia Wilde, Paul Dano, Clancy Brown and Sam Rockwell. It opens on July 29.

Directed by Marcus Nispel, Conan the Barbarian stars Jason Momoa, Rachel Nichols, Stephen Lang, Rose McGowan, Saïd Taghmaoui, Ron Perlman, Leo Howard, Steve O’Donnell, Raad Rawi, Nonso Anozie, Bob Sapp and Milton Welsh. It opens on Aug. 19.

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