IMAX Corporation is a theatre company based in Ontario, California that designs and manufactures IMAX cameras and projection systems. A number of Marvel Studios projects were filmed using IMAX cameras, including Avengers: Infinity War and Avengers: Endgame, as well as Marvel Television's Inhumans.
In November 2016, Marvel Television and IMAX announced Inhumans. The entire series was filmed with IMAX digital cameras. Inhumans debuted an edited specific for a theatrical-release version of the first two episodes. The episodes debuted on IMAX screens in theaters worldwide in September 2017, with the series airing weekly on ABC afterward. After the poor critical reception to the IMAX version of the first two episodes and a box office gross of $3.5 million, IMAX CEO Richard Gelfond said, "Going forward, we intend to take a more conservative approach consistent with the Game of Thrones approach to capital investments and content. We will be more conservative when considering whether to invest our own capital; and if so, to what extent."
In August 2018, Marvel Studios and IMAX announced that it would be showcasing the first 20 Marvel Cinematic Universe films in IMAX theatres, as part of Marvel Studios' 10th Anniversary. This resulted in some films, Iron Man, The Incredible Hulk and Captain America: The First Avenger, receiving an IMAX viewing for the first time.
Most of the Phase Three entries contained sequences that were presented in the IMAX expanded aspect ratio of 1.90:1 exclusively in IMAX theaters, except for Spider-Man: Homecoming which was presented entirely in the widescreen 2.39:1 aspect ratio.