The 40-year-old said that she, her doula, and newborn Everly were alone for a "really hard" six weeks after she gave birth because of Tatum's schedule.
The rock star inspired the movie idea after he posted a photo of himself holding a power tool while wearing an open shirt.
Kravitz's directorial debut will star Tatum as a billionaire tech mogul who brings a young woman to the titular island.
The actor admitted that the "Harry Potter" star was "put in an uncomfortable position" on the set of his 2013 movie "This Is The End."
Still, the actor's loved ones are grateful he passed on the stripper-themed smash, which starred Channing Tatum and Matthew McConaughey.
"The One and Only Sparkella" is dedicated to the actor's daughter, Everly, "who loves sparkly, rainbow-y things."
The 40-year-old was seen outside girlfriend Jessie J's home, holding trash while wearing extremely shiny pants, and people were into it.
These two might just be the friendliest exes around.
The singer pushed back on entertainment site Pop Culture for suggesting her post on mental health was about the couple's breakup.
The relationship was the actor's first since calling it quits with ex-wife Jenna Dewan.