New York [US] Ryan Reynolds and Blake Lively's kids haven't seen their dad's latest movie 'IF,' but they have seen the trailer and are intrigued, telling People "They've seen the trailer, and they can't stop watching it. ," Reynolds said on the red carpet at the SVA Theater in New York City. Reynolds and Lively's children watched so much of the trailer in the morning that it was "a little overwhelming," Reynolds admitted. They have to remind them, "We're going to school right now. We're not watching a trailer. We're going to school". Kids "love the trailers" for 'IF' and were "excited" to finally see the movie, the actor said, adding, "They love the trailers, and then they see all those little thirty-second spots that You can watch on YouTube.They're very passionate about it," Reynolds said. Reynolds also joked that he "worships" his father's co-star Kelly Fleming, who joined the "IF" cast in taking care of his children. His top choice for. Lively, 36, and Reynolds have three daughters: Ines (7 1/2 ), James (9), and Betty (4 1/2 ). Also present on the red carpet were 'IF' writer-director John Krasinski along with Emily Blunt and co-stars Reynolds, Steve Carell, Maya Rudolph, Bradley Cooper Matt Damon, Awkwafina, Amy Schumer, Bobby Moynihan. Christopher Meloni, Fleming and others. According to the plot, 'IF' is about a girl (Fleming) who has superpowers that allow her to "see everyone's imaginary friends" and use her talent to "reunite forgotten IFs with their children". Allows. The film's first trailer opens with Reynolds walking from a child's bedroom to a closet door as the words flash on the screen, "What if everything you believed in as a child was real? " The closet opened to reveal a large, furry, purple imaginary friend (Carrel) who came out and said hello before sneezing loudly, asking, "What's up?" Carell's character explained, "I'm an IF, get it? Imaginary friends.'IF' reunites Carell and Krasinski, who previously appeared together on the NBC comedy The Office from 2005 until Carell's departure in 2011. Speaking on the Today Show, Reynolds discussed whether he had children with Lively (who also plays a character in IF). Imaginary Friend "My daughter, Betty, she has a very strong imagination, so there's always someone standing behind me and I'm spinning around like in a horror movie and I realize, no, this is Harvey from the old movie Harvey. "It's a 6-foot-5 rabbit," according to People. "At least it's not Deadpool. It's NSFK."It's not safe for kids, co-host Savannah Guthrie teased "No, I ruined them with it because I have the original suit I have... down in the basement like there's a mold on my body," Reynolds said. Said when Guthrie joked that she was "starting to understand the issues you're talking about." Reynolds recalled, "Yes, absolutely. And it was exactly like that one night and one of my kids went up there and screamed bloody murder." "I ran down there because I'd forgotten it was down there and I screamed bloody murder. So yes, no, everyone is pretty well damaged.'IF' will release on May 17, reports People