The highest-grossing movie of all time is currently Avengers: Endgame, which was released in 2019 and went on to earn over $2.7 billion at the box office worldwide. This film not only broke box office records but also had a significant impact on pop culture history.

One of the ways Avengers: Endgame changed pop culture history was by solidifying the dominance of the Marvel Cinematic Universe (MCU). The film was the culmination of a 22-film storyline that began with Iron Man in 2008. It brought together characters from across the MCU, including the Avengers, the Guardians of the Galaxy, and other heroes. The success of Avengers: Endgame showed that audiences were invested in this shared universe and its characters, and it paved the way for future MCU films and TV shows.

Another way Avengers: Endgame changed pop culture was by setting a new standard for blockbuster filmmaking. The film was a massive spectacle, with incredible action sequences, emotional moments, and a complex storyline that required viewers to have seen many of the previous MCU films. It showed that audiences were willing to invest in long-running, interconnected stories that required a significant time commitment.

The film's success also had a significant impact on the careers of its cast and crew. Many of the actors who starred in the film, such as Robert Downey Jr. and Chris Evans, became even more famous and sought-after after the film's release. The Russo brothers, who directed the film, became some of the most in-demand directors in Hollywood.

Avengers: Endgame also had a significant impact on the way films are marketed and released. The film was shrouded in secrecy, with the filmmakers going to great lengths to prevent spoilers from leaking online. The marketing campaign for the film was also unique, with the studio releasing trailers that only showed footage from the first 15 minutes of the film. This created a sense of anticipation and excitement among fans, and it helped to drive ticket sales.

The film's success also highlighted the power of fandom and the importance of diversity in Hollywood. The MCU has always had a diverse fanbase, and Avengers: Endgame brought together fans from all over the world. The film's cast also featured a diverse group of actors, including women and people of color, which helped to make the film more accessible to a wider audience.

In conclusion, Avengers: Endgame is the highest-grossing movie of all time for a reason. It broke box office records and had a significant impact on pop culture history. It solidified the dominance of the MCU, set a new standard for blockbuster filmmaking, and had a significant impact on the careers of its cast and crew. It also changed the way films are marketed and released and highlighted the power of fandom and the importance of diversity in Hollywood.