Both were initially dubious when approached about a new Godzilla movie.
Aaron Taylor-Johnson and Elizabeth Olsen rolled their eyes when they received news that they were the No. 1 choices to star in the creature feature.
"When I had a call that told me I'm considered for a part, I laughed it off and asked what else is there for me," British actor Taylor-Johnson, 23, told M at the JW Marriot Essex House in New York.
"My first thought was 'Really? Another Godzilla? Why bother?'".
US actress Olsen, 25, had a similar reaction.
"Me? Why? I'm so not the Godzilla movie person."
It's not hard to see why they were so sceptical about the project.
The lizard king's last Hollywood outing in 1995 was a critical disaster denounced by fans, and even its director, Roland Emmerich, expressed his regrets about it.
Moreover, Taylor-Johnson - despite his outing as the titular hero in the two Kick-Ass movies - isn't your typical action blockbuster star.
Neither is Olsen, who has carved out a solid reputation as an indie actress through films such as Martha Marcy May Marlene (2011), Liberal Arts (2012) and the recent Kill Your Darlings.
But both had their interest piqued when informed that British film-maker Gareth Edwards, best known for directing the critically-acclaimed indie sci-fi flick Monsters (2010), would be helming Godzilla.
"I thought that was interesting. I like Monsters," said Taylor-Johnson. "Gareth shared his vision for Godzilla. He didn't have a script yet but I was impressed by what he wanted to do.
"What was supposed to be about an hour-long chat turned into a six-hour session, and I walked out on board."
Olsen was also won over by Edwards' passionate sales pitch, but more importantly, she wanted to "work with the cast".
Godzilla, opening here tomorrow, promises to be in the same spirit as the 1954 original, which saw the eponymous monster being born out of a nuclear incident.
Japan-based American nuclear physicist Joe Brody (Bryan Cranston) remains obsessed about finding the truth of a nuclear fallout that tore apart his family, even after 15 years.
Taylor-Johnson plays Ford, Brody's estranged navy bomb disposal expert son who is inevitably drawn into his father's quest. Olsen is Elle, Ford's wife and mother of their four-year-old son.
This darker and edgier Godzilla also stars Ken Watanabe, Juliette Binoche, Sally Hawkins and David Strathairn.
Said Taylor-Johnson: "I think Gareth was being very ambitious to see me as this big military guy. I never really think I can do that but I loved that he felt I could pull it off.