Yes, the original Captain Marvel was a man. Created by writer Bill Parker and artist C.C. Beck, Captain Marvel debuted in "Whiz Comics" #2 in 1940, featuring a young boy named Billy Batson who could transform into an adult superhero by saying the magic word "Shazam." This character later became known as Shazam in the comics. In the Marvel Comics universe, the character named Mar-Vell, a Kree warrior introduced in 1967, was also male. The title "Captain Marvel" has since been adopted by female characters, notably Carol Danvers in the Marvel Cinematic Universe.

In "Captain Marvel," Carol Danvers, also known as Captain Marvel, is portrayed as one of the most powerful heroes in the Marvel Cinematic Universe (MCU). Her abilities include superhuman strength, energy projection, and flight. While Thanos is an immensely powerful villain, especially with the Infinity Stones, Captain Marvel's strength and potential are significant. In "Avengers: Endgame," she holds her own against Thanos, suggesting she could match or exceed his power under certain conditions. However, the outcome of their battle would depend on various factors.

"Captain Marvel," released in March 2019, was a significant box office success, grossing over $1.1 billion worldwide. It became the highest-grossing film directed by a woman at the time and was well-received for its performances, particularly Brie Larson's portrayal of Carol Danvers. While some critics had mixed reviews regarding its storyline, its financial performance and positive audience reception categorize it as a hit within the Marvel Cinematic Universe. Overall, "Captain Marvel" contributed to the franchise's ongoing success.

"Captain Marvel" is set in the Marvel Cinematic Universe during the 1990s, specifically in 1995. It serves as an origin story for Carol Danvers, who becomes Captain Marvel. The film takes place before the events of the main Avengers saga, introducing key characters and elements that tie into later films. It explores her journey as she discovers her identity, her powers, and her connection to the Kree and Skrull conflict, ultimately leading to her pivotal role in the events of "Avengers: Endgame."