Iron Man is a 2008 American superhero film based on the Marvel Comics character of the same name. Produced by Marvel Studios and distributed by Paramount Pictures,it is the first film in the Marvel Cinematic Universe. It was directed by Jon Favreau from a screenplay by the writing teams of Mark Fergus and Hawk Ostby, and Art Marcum and Matt Holloway, and stars Robert Downey Jr. as Tony Stark / Iron Man alongside Terrence Howard, Jeff Bridges, Shaun Toub, and Gwyneth Paltrow. In the film, following his escape from captivity by a terrorist group, world famous industrialist and master engineer Tony Stark builds a mechanized suit of armor and becomes the superhero Iron Man.

The Incredible Hulk is a 2008 American superhero film based on the Marvel Comics character the Hulk. Produced by Marvel Studios and distributed by Universal Pictures, it is the second film in the Marvel Cinematic Universe (MCU). It was directed by Louis Leterrier from a screenplay by Zak Penn, and stars Edward Norton as Bruce Banner alongside Liv Tyler, Tim Roth, Tim Blake Nelson, Ty Burrell, and William Hurt. In the film, Bruce Banner becomes the Hulk as an unwitting pawn in a military scheme to reinvigorate the "Super-Soldier" program through gamma radiation. Banner goes on the run from the military while attempting to cure himself of the Hulk.

Iron Man 2 is a 2010 American superhero film based on the Marvel Comics character Iron Man. Produced by Marvel Studios and distributed by Paramount Pictures,[N 1] it is the sequel to Iron Man (2008) and the third film in the Marvel Cinematic Universe (MCU). Directed by Jon Favreau and written by Justin Theroux, the film stars Robert Downey Jr. as Tony Stark / Iron Man alongside Gwyneth Paltrow, Don Cheadle, Scarlett Johansson, Sam Rockwell, Mickey Rourke, and Samuel L. Jackson. Six months after Iron Man, Tony Stark resists calls from the United States government to hand over the Iron Man technology, which is causing his declining health. Meanwhile, Russian scientist Ivan Vanko uses his own version of the technology to pursue a vendetta against the Stark family.

Marvel's The Avengers(classified under the name Marvel Avengers Assemble in the United Kingdom and Ireland[3][7]), or simply The Avengers, is a 2012 American superhero film based on the Marvel Comics superhero team of the same name. Produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures, it is the sixth film in the Marvel Cinematic Universe (MCU). Written and directed by Joss Whedon, the film features an ensemble cast including Robert Downey Jr., Chris Evans, Mark Ruffalo, Chris Hemsworth, Scarlett Johansson, and Jeremy Renner as the Avengers, alongside Tom Hiddleston, Clark Gregg, Cobie Smulders, Stellan Skarsgård, and Samuel L. Jackson. In the film, Nick Fury and the spy agency S.H.I.E.L.D. recruit Tony Stark, Steve Rogers, Bruce Banner, and Thor to form a team capable of stopping Thor's brother Loki from subjugating Earth.

Captain America: The First Avenger is a 2011 American superhero film based on the Marvel Comics character Captain America. Produced by Marvel Studios and distributed by Paramount Pictures, it is the fifth film in the Marvel Cinematic Universe (MCU). The film was directed by Joe Johnston, written by Christopher Markus and Stephen McFeely, and stars Chris Evans as Steve Rogers / Captain America alongside Tommy Lee Jones, Hugo Weaving, Hayley Atwell, Sebastian Stan, Dominic Cooper, Neal McDonough, Derek Luke, and Stanley Tucci. During World War II, Steve Rogers, a frail man, is transformed into the super-soldier Captain America and must stop the Red Skull from using the Tesseract as an energy source for world domination.

Thor is a 2011 American superhero film based on the Marvel Comics character of the same name. Produced by Marvel Studios and distributed by Paramount Pictures,it is the fourth film in the Marvel Cinematic Universe (MCU). It was directed by Kenneth Branagh, written by the writing team of Ashley Edward Miller and Zack Stentz along with Don Payne, and stars Chris Hemsworth as the title character alongside Natalie Portman, Tom Hiddleston, Stellan Skarsgård, Colm Feore, Ray Stevenson, Idris Elba, Kat Dennings, Rene Russo, and Anthony Hopkins. After reigniting a dormant war, Thor is banished from Asgard to Earth, stripped of his powers and his hammer Mjölnir. As his brother Loki plots to take the Asgardian throne, Thor must prove himself worthy.