Gwyneth Paltrowis taking a second to reminisce afterAvengers: Endgamesoared to a $1.2 billion worldwide opening.The actress, who has been a part of the Marvel Cinematic Universe ever since the very first movie in 2008, posted a behind-the-scenes shot with the originalIron Man 2crew to celebrateEndgame.The selfie featuresDon Cheadle,Scarlett JohanssonandRobert Downey Jr.on the set ofEndgameduring a scene from the beginning of the movie. The foursome starred together in the secondIron Man, which introduced Johansson’s character as Natasha Romanoff/Black Widow.“What a weekend! From Ironman 2 with this crew all the way to behind the scenes of #avengersendgame …amazing to be a part of such an impactful franchise. Congratulations to the giant team that made this film possible, starting with@jonfavreauit all started with you,” Paltrow wrote, shouting out theIron Mandirector.Paltrow attended the Los Angeles premiere of the movie where she told PEOPLE her daughterApple, 14, and sonMoses, 13, knew the details of the plot before most of the world.“I’ve actually told my children the story,” Paltrow said when asked if her kids had begged her for information. “But they are the best secret keepers in the world.”REVIEW:Avengers: EndgameFills Three-Hour Runtime with Epic Action and Tremendous HeartPaltrow also gushed about her special bond with longtime friend Downey Jr.“I’ve known Robert for many, many years. Our friendship pre-dates theIron Manfilm,” she said of the 2008 movie. “We laugh and we get along, and there’s a very sort of fraternal dynamic between us.”She added, “I always love to be on set with him. You never know what he’s gonna do or say, and he really keeps you on your toes. You know, he’s a very special guy.”

Gwyneth Paltrowis taking a second to reminisce afterAvengers: Endgamesoared to a $1.2 billion worldwide opening.

The actress, who has been a part of the Marvel Cinematic Universe ever since the very first movie in 2008, posted a behind-the-scenes shot with the originalIron Man 2crew to celebrateEndgame.

The selfie featuresDon Cheadle,Scarlett JohanssonandRobert Downey Jr.on the set ofEndgameduring a scene from the beginning of the movie. The foursome starred together in the secondIron Man, which introduced Johansson’s character as Natasha Romanoff/Black Widow.

“What a weekend! From Ironman 2 with this crew all the way to behind the scenes of #avengersendgame …amazing to be a part of such an impactful franchise. Congratulations to the giant team that made this film possible, starting with@jonfavreauit all started with you,” Paltrow wrote, shouting out theIron Mandirector.

Paltrow attended the Los Angeles premiere of the movie where she told PEOPLE her daughterApple, 14, and sonMoses, 13, knew the details of the plot before most of the world.

“I’ve actually told my children the story,” Paltrow said when asked if her kids had begged her for information. “But they are the best secret keepers in the world.”

REVIEW:Avengers: EndgameFills Three-Hour Runtime with Epic Action and Tremendous Heart

Paltrow also gushed about her special bond with longtime friend Downey Jr.

“I’ve known Robert for many, many years. Our friendship pre-dates theIron Manfilm,” she said of the 2008 movie. “We laugh and we get along, and there’s a very sort of fraternal dynamic between us.”

She added, “I always love to be on set with him. You never know what he’s gonna do or say, and he really keeps you on your toes. You know, he’s a very special guy.”

source: people.com