Marvel Cinematic Universe

The Marvel Cinematic Universe (MCU) is an American media franchise and shared universe centered on a series of superhero films produced by Marvel Studios. The films are based on characters that appear in American comic books published by Marvel Comics. The franchise also includes several television series, short films, digital series, and literature. The shared universe, much like the original Marvel Universe in comic books, was established by crossing over common plot elements, settings, cast, and characters.

Marvel Studios releases its films in groups called "Phases", with the first three phases collectively known as "The Infinity Saga" and the following three phases as "The Multiverse Saga". The first MCU film, Iron Man (2008), began Phase One, which culminated in the 2012 crossover film The Avengers. Phase Two began with Iron Man 3 (2013) and concluded with Ant-Man (2015), while Phase Three began with Captain America: Civil War (2016) and concluded with Spider-Man: Far From Home (2019). Black Widow (2021) is the first film in Phase Four, which concluded with Black Panther: Wakanda Forever (2022), while Phase Five began with Ant-Man and the Wasp: Quantumania (2023) and concluded with Thunderbolts* (2025). Phase Six began with The Fantastic Four: First Steps (2025) and will conclude with Avengers: Secret Wars (2027).

Marvel Television expanded the universe to network television with Agents of S.H.I.E.L.D. on ABC in 2013 before further expanding to streaming television on Netflix and Hulu and to cable television on Freeform. They also produced the digital series Agents of S.H.I.E.L.D.: Slingshot (2016). Marvel Studios began producing their own television series for streaming on Disney+, starting with WandaVision in 2021 as the beginning of Phase Four. That phase also saw the studio expand to television specials, known as Marvel Studios Special Presentations, starting with Werewolf by Night (2022). The MCU includes various tie-in comics published by Marvel Comics, a series of direct-to-video short films called Marvel One-Shots from 2011 to 2014, and viral marketing campaigns for some films featuring the faux news programs WHIH Newsfront (2015–16) and The Daily Bugle (2019–2022).

The franchise has been commercially successful, becoming one of the highest-grossing media franchises of all time, and it has received generally positive reviews from critics. However, many of the Multiverse Saga projects performed below expectations and struggled compared to those of the Infinity Saga. The studio has attributed this to the increased amount of content produced after the 2019 film Avengers: Endgame, and as of 2024, began decreasing its content output. The MCU has inspired other film and television studios to attempt similar shared universes and has also inspired several themed attractions, an art exhibit, television specials, literary material, multiple tie-in video games, and commercials.

By 2005, Marvel Entertainment was planning to produce its own films independently and distribute them through Paramount Pictures. Previously, Marvel had co-produced several superhero films based on Marvel Comics with Columbia Pictures, New Line Cinema, 20th Century Fox, and others. Marvel made relatively little profit from these licensing deals and wanted to get more money out of its films while maintaining artistic control of the projects and distribution. Avi Arad, head of Marvel Entertainment's film division known as Marvel Films, was pleased with director Sam Raimi's Spider-Man film trilogy (2002–2007) at Sony Pictures and Columbia but was less enthused with some of the other films. Arad decided to form Marvel Studios, Hollywood's first major independent film studio since DreamWorks Pictures was founded in 1994. Kevin Feige, Arad's second-in-command, realized that unlike Spider-Man, Blade, and the X-Men which were respectively licensed to Sony, New Line, and Fox, Marvel owned the rights to the Avengers team. Feige, a self-described "fanboy", envisioned combining these characters in a shared universe similar to the one created by Stan Lee and Jack Kirby for Marvel Comics in the 1960s.

"It's never been done before and that's kind of the spirit everybody's taking it in. The other filmmakers aren't used to getting actors from other movies that other filmmakers have cast, certain plot lines that are connected or certain locations that are connected, but I think... everyone was on board for it and thinks that it's fun. Primarily because we've always remained consistent saying that the movie that we are making comes first. All of the connective tissue, all of that stuff is fun and is going to be very important if you want it to be. If the fans want to look further and find connections, then they're there. There are a few big ones obviously, that hopefully the mainstream audience will [be] able to follow as well. But... the reason that all the filmmakers are on board is that their movies need to stand on their own. They need to have a fresh vision, a unique tone, and the fact that they can interconnect if you want to follow those breadcrumbs is a bonus."

To raise capital, the studio secured funding from a seven-year, $525 million revolving credit facility with Merrill Lynch. Marvel planned to release individual films for their main characters and then merge them in a crossover film; Arad, who resigned in 2006, doubted this strategy would work. He insisted that it was his reputation that helped secure the initial financing. In 2007, Feige was named studio chief. To preserve its artistic integrity, Marvel Studios formed a creative committee of six people familiar with its comic book lore: Feige, Marvel Studios co-president Louis D'Esposito, Marvel Comics' president of publishing Dan Buckley, Marvel Entertainment's chief creative officer Joe Quesada, comic book writer Brian Michael Bendis, and Marvel Entertainment president Alan Fine, who oversaw the committee. Feige initially referred to the shared narrative continuity of the films as the "Marvel Cinema Universe", but later used the term "Marvel Cinematic Universe". Since the franchise expanded to other media, some have used this phrase to only refer to the feature films.

The MCU films are released in groups called "Phases", beginning with Phase One and Phase Two. In December 2009, the Walt Disney Company purchased Marvel Entertainment for $4 billion. Disney said future Marvel Studios films would be distributed by its own studio once the prior deal with Paramount expired. The films of Phase Three were announced at a special press event in October 2014. By September 2015, Marvel Studios was integrated into Walt Disney Studios. Feige was reporting to Walt Disney Studios chairman Alan F. Horn instead of Marvel Entertainment CEO Isaac Perlmutter, and the creative committee began having only "nominal" input on the films. They continued to consult on Marvel Television productions, which remained under Perlmutter's control. All key film decisions moving forward were to be made by Feige, D'Esposito, and executive vice president Victoria Alonso. The studio went on to establish the Marvel Studios Parliament, a "brain trust" of long-time executives at the company who help to elevate each other's projects where possible. In November 2017, Feige said Avengers: Endgame (2019) would provide a definitive conclusion to the films thus far and begin a new period for the franchise. He later said Phase Three would conclude "The Infinity Saga".