Watch free video IF Official Teaser Trailer

What if everything you believed as a kid was real? ... From writer and director John Krasinski, IF is about a girl who discovers that she can see everyone's imaginary friends -- and what she does with that superpower -- as she embarks on a magical adventure to reconnect forgotten IFs with their kids. IF stars Ryan Reynolds, John Krasinski, Cailey Fleming, Fiona Shaw, and the voices of Phoebe Waller-Bridge, Louis Gossett Jr. and Steve Carell alongside many more as the wonderfully unique characters that reflect the incredible power of a child's imagination.

Directed by John Krasinski
Starring: Ryan Reynolds, Cailey Fleming, Fiona Shaw, Bobby Moynihan, Alan Kim, Liza Colon-Zayas, John Krasinski -- Voices: Steve Carell, Phoebe Waller-Bridge, Louis Gossett Jr., Emily Blunt, Matt Damon, Maya Rudolph, Jon Stewart, Sam Rockwell, Sebastian Maniscalco, Christopher Meloni, Richard Jenkins, Awkwafina