During the production of Godzilla x Kong: The New Empire, Rebecca Hall found herself struggling to maintain a straight face.

60th Berlin Film Festival - Please Give - Photocall
BERLIN - FEBRUARY 16: Actress Rebecca Hall attends the 'Please Give' Press Conference during day six of the 60th Berlin International Film Festival at the Grand Hyatt Hotel on February 16, 2010 in Berlin, Germany.
(Photo : Photo by Pascal Le Segretain/Getty Images)

In the upcoming sci-fi sequel, "Godzilla x Kong: The New Empire," Rebecca Hall, 41, returns to her role as Dr. Ilene Andrews, following her appearance in the 2021 film "Godzilla vs. Kong," both directed by Adam Wingard. Once more, Hall finds herself acting alongside towering CGI creatures, an experience that occasionally leads to lighthearted moments during filming.

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"When it comes to imagining Godzilla and Kong, that's tough," Hall told PEOPLE. "That's tough, because more often than not it's a tennis ball on a stick."

Chloé : Photocall - Paris Fashion Week - Womenswear Fall Winter 2023-2024
PARIS, FRANCE - MARCH 02: (EDITORIAL USE ONLY - For Non-Editorial use please seek approval from Fashion House) Rebecca Hall attends the Chloé Womenswear Fall Winter 2023-2024 show as part of Paris Fashion Week on March 02, 2023 in Paris, France.
(Photo : Photo by Pascal Le Segretain/Getty Images)

"Actually," she added, "at one pivotal moment when [Kaylee Hottle's character] Jia reaches across and touches Kong's hand, they literally had a foam hand with a pointy finger that they were just putting up towards her. That was hard not to laugh at."

Rebecca Hall describes her character in the film as a significant departure from traditional roles. She notes that Dr. Andrews represents a shift from typical damsel-in-distress tropes to a more empowered, authoritative figure within the King Kong universe. Hall emphasizes the seriousness and bravery of Dr. Andrews, highlighting her character's unwavering dedication to her role.

According to Hall, Dr. Andrews rarely finds herself in situations where laughter is appropriate. She approaches her responsibilities with a solemn demeanor and a penchant for deadpan humor. This portrayal underscores Dr. Andrews' commitment to her duties and adds depth to her character.

First Reformed Premiere - 74th Venice Film Festival
VENICE, ITALY - AUGUST 31: Jury member Rebecca Hall walks the red carpet ahead of the 'First Reformed' screening during the 74th Venice Film Festival at Sala Grande on August 31, 2017 in Venice, Italy.
(Photo : Photo by Vittorio Zunino Celotto/Getty Images)

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"It was tough, but I take a kind of perverse pleasure in saying very serious lines to a tennis ball on a stick. I don't know, it's an interesting challenge," says the actor, also adding, "I just save up the laughter and then laugh a lot when someone calls cut - and try not to take myself too seriously, even though the character is taking themselves very seriously."