The "Insurgent" actress has daughter Mia and son Joe from her two previous marriages and 15-month-old son Bear with third husband Ned Rocknroll, reported People magazine.
"They do very much have an opinion on what I do and don't do these days," Winslet, 39, said.
Her kids were excited when they heard she will star as malevolent leader Jeanine in the "Divergent" series, based on Veronica Roth's bestsellers.
"'Yeah, Mom, you should definitely do it!' The idea that their mom would play this baddie was incredibly exciting," she added.