The film, set to hit US theaters on Thursday night (Friday in Manila), is sure to be one of the biggest blockbusters of the year—and the unofficial kickoff to the summer movie season.

“Infinity War” is the 19th film in the so-called Marvel Cinematic Universe (MCU)—it combines a whopping nine franchises, and the cast list reads like a who’s who of Hollywood’s A-list.

Robert Downey Jr. will don the red and yellow metal suit once again as Iron Man; Benedict Cumberbatch is Doctor Strange; Scarlett Johansson is back as Black Widow; and Australia’s Chris Hemsworth is Thor.

Also back for more? Black Panther — the Marvel breakout of the year after the massive opening of the standalone pic in February, with Captain America, the Hulk, Spider-Man, Hawkeye, the Guardians of the Galaxy and their assorted allies.

Their mission? To prevent the powerful purple alien Thanos (Josh Brolin) from destroying the universe.

“We took a picture of every single person whose character has been in the MCU. We hung it up on a wall all around us,” co-director Anthony Russo, who helms the pic with his brother Joe, told reporters ahead of the film’s release.

“We basically spent months and months and months talking about where we could go with each character, how we could draw them through the story,” he added.

“Every one of these characters... has been on a very specific journey through the MCU to arrive at this moment.”

This is the third “Avengers” film, with the final, untitled saga set for next year.

At the press conference in Beverly Hills, the directors and stars were careful not to reveal too many details about the film’s plot.

But expectations are high after the massive success of “Black Panther,” which so far has raked in more than $1.3 billion worldwide and has broken the all-time North American record set by “Titanic,” with more than $680 million in the US and Canada.