Paul Rudd says the 'Ant-Man' cast was the 'coolest group' on set of the 'Avengers: Endgame' funeral scene because of Michelle Pfeiffer

• Paul Rudd spoke to THR about starring alongside Michelle Pfeiffer in "Avengers: Endgame."
• Rudd said that the "Ant-Man" cast felt like "the coolest group" because of Pfeiffer.

Paul Rudd said that his "Avengers: Endgame" costars were starstruck by Michelle Pfeiffer while on the set of the Marvel movie.

Rudd, who portrays Scott Lang/Ant-Man in the MCU, spoke highly of the actress in Pfeiffer's new cover story for The Hollywood Reporter. In trying to explain Pfeiffer's status as a legendary star, Rudd recalled his experience working with the "Endgame" cast while filming the funeral scene for Tony Stark/Iron Man (Robert Downey Jr.).

The aforementioned scene took place late in the 2019 film after Tony wielded all six Infinity Stones to wipe out the villain Thanos (Josh Brolin) and his army.

In doing so, the Avenger died and a funeral was held at a lake outside of the home he shared with Pepper Potts (Gwyneth Paltrow) and their daughter Morgan (Lexi Rabe).

The somber moment featured more than 30 actors who have appeared in MCU films over the years, including Rudd, Pfeiffer (Janet van Dyne), and their "Ant-Man" costars Evangeline Lilly (Hope van Dyne) and Michael Douglas (Hank Pym).

The funeral scene was also so momentous and top-secret at the time of filming that the actors were lied to and told that they were going to the set for a wedding scene.

"It was the first time a lot of people were meeting each other, and it's a pretty impressive collection," Rudd told THR. "I know I was going around, like, 'Oh wow, there's the 'Guardians' crew,' and 'Oh my God, there's the 'Black Panther' crew.'"

"And when our crew showed up, and we had Michelle Pfeiffer, it felt like, among all those Avengers, we had the coolest group," the "Clueless" star added.

Rudd said that after filming the scene, he observed some of the actors behaving differently in the presence of Pfeiffer.

"I remember walking around at the little mixer afterward, and having, like, [Mark] Ruffalo and [Chris] Hemsworth go, like, 'Holy shit, it's Michelle Pfeiffer.' And there was a lot of that. Everyone's just looking over at her and everyone's a little bit nervous."

"Endgame" marked Pfeiffer's second appearance in the MCU, following her debut as the original Wasp and wife of Hank in 2018's "Ant-Man and the Wasp."

She'll return for the upcoming third installment of "Ant-Man," titled Ant-Man and the Wasp: Quantumania," in theaters on July 28, 2023.