That's why there are more than 180 times in which some form of the word "fuck" is used his upcoming action comedy "The Heat," mostly by Melissa McCarthy's detective character. For his part, Feig is unapologetic.
Feig's faith in truth -- comedic or emotional -- has been a guidepost in his evolution from standup to writer-director in TV and then film.
In "The Heat" (opening June 28), McCarthy's foul-mouthed cop is matched with Sandra Bullock's uptight FBI agent.
"At our test screenings, people would say 'It's such a sweet movie,' despite the language, and I think that's because it's so organic to her character," he says. "It's not done in this ugly way where she's attacking people -- that's just the way she talks."
"The Heat" is opening two years after Feig and McCarthy scored a smash hit with "Bridesmaids" -- another R-rated comedy.
"We didn't really know until the end whether 'Bridesmaids' was going to be R rated or PG-13," Feig recalls. "I make sure to shoot PG-13 versions of each scene, but from the first test screening on, people liked the R version so much that we never tried to clean it up. The honesty felt real."
Feig remains genuinely perplexed as to why Hollywood hasn't been rushing to make more comedies like "Bridesmaids." A day after a well-received screening of "The Heat" at CinemaCon in April, he expressed frustration over studios citing the lack of female stars for the international market as a reason for not backing female-driven projects.
"I'm desperate to change that," he said at the time. "I would love to figure it out."
To that end, Feig signed a three-year first-look deal with Fox earlier this year and is developing a female comedy-action project.
"They like it, and we're just trying to figure out casting and how soon we can go. I've said on the red carpet that it's a female James Bond action comedy. I've always loved action comedies like '48 Hours' and wanted to dabble in that world. And I'm also a James Bond fanatic, so I figured I'd write my own."
Feig's comedy roots are in standup, dating back more than four decades.
"I started when I was 7, and we were singing 'Yellow Bird' and I started doing a stupid dance," he recalls. "My classmates told me that Miss Hill was crying, she was laughing so hard."
By the time he was 15, his parents were taking him to perform comedy at the Delta Lady in Detroit with Dave Coulier and Mike Binder. He moved out to L.A. in the early 1980s, started working for producer Michael Phillips, won $29,000 on "The $25,000 Pyramid" and began performing standup full time, crossing paths with Judd Apatow and Andy Kindler.
"Standup teaches you everything in comedy," he recalls. "There are moments when I miss standup because it's such a pure art form. It's funny with the test-screening process for both Judd and I because that's the way that we used to work our acts -- you have a bunch material and you do it and then you decide what worked."
Feig used nearly a dozen test screenings for both "Bridesmaids" and "The Heat."
"I start them two or three weeks into my director's cut and then every two weeks we'll do another," he explains. "Because it allows me not to fall in love with my edit. If you start early, you have no emotional investment in the cut."