Avengers the new beginning

You're referring to the Marvel Cinematic Universe (MCU) film "Avengers: Endgame"!

"Avengers: Endgame" is a 2019 superhero film directed by Anthony and Joe Russo and produced by Marvel Studios. It is the 22nd film in the Marvel Cinematic Universe (MCU) and the culmination of the Infinity Saga.

The film follows the surviving members of the Avengers and their allies as they attempt to undo the damage caused by Thanos (Josh Brolin) in the previous film, "Avengers: Infinity War". The team must use the Quantum Realm to travel back in time and collect the Infinity Stones, which they can use to restore balance to the universe and bring back the lives that were lost in the Snap.

The film features a star-studded cast, including:

The film received widespread critical acclaim and was a massive commercial success, grossing over $2.79 billion worldwide. It also set numerous box office records, including the highest-grossing opening weekend in the United States.

"Avengers: Endgame" is widely regarded as one of the best superhero films of all time, and its conclusion marked the end of an era for the MCU's original Avengers team.