The film "The Office" alum eventually agreed to direct and star in with his wife, Emily Blunt, holds a 100 percent positive rating on the review aggregator RottenTomatoes.com after its showing last month at South by Southwest and premiering Monday in Los Angeles.
The film, which opens nationwide Friday, follows a married couple with three kids as they try to survive an apocalypse of mysterious origins on an upstate New York farm where terrifying monsters attack anything that makes noise.
"This is exactly what I didn't want to do," the 38-year-old Massachusetts native said at a recent New York news conference. "I am not good with horror movies. I am a scaredy cat."
Krasinski said the timing was perfect for him to say "yes," however, because he read the screenplay just a few weeks after Blunt gave birth to their second child.
"I was legitimately in that world of terror and thinking every single minute of every single day about protecting my daughter and keeping her safe, keeping her alive," he recalled.
"And then a script comes about, basically, the exact same thing. So, that immediately connected me to the whole project and I called [the producers] and said I wanted to do it."
"A Quiet Place," which is set to open in theaters nationwide Friday, marks the first time A-list lovebirds Blunt and Krasinski have shared the screen.
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"We had people joking, 'You're going to be divorced by the last week,'" Blunt laughed.
"And we are," Krasinski teased. "Big headline."
"Yeah, but it was actually kind of amazing. We really creatively aligned ourselves. It was special and I would do it again, for sure," Blunt said.
The shared, real-life experience of raising two children together -- ages 2 and 4 -- appears to have helped Blunt and Krasinski empathize with their characters.
"The back story of imagining what this family's life must have been like before the horror ensued was sort of gut-wrenching to us," she said.
"Imagine if this happened to our family. What would that be like? And I think that was really helpful. . .I think we just tried to bring as much of what we'd want for our children into this film."
Blunt said she is more similar to her nurturing mom character, Evelyn, than Krasinski is to Lee, the "old-school guy" he plays.
"John is a communicator. He can emotionally engage and connect," Blunt said. "All [Lee] wants is to keep these kids alive and love is, like, secondary. We talked about it a lot -- over a lot of whiskey -- which we drank throughout this process."
"I know a lot of people who wake up on Monday and just want to get through until Friday. That's it. And then I know other people, who wake up Monday and say, 'Today is going to be the best day I have ever had in my life.'"
"And I think that is the two ways [Lee and Evelyn] were parenting. ... I very much understand both sides."
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