To celebrate the release of IF, the anticipated new film from John Krasinski, we sat down with some of the stars of the wonder new adventure to find out more.

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.

Chatting to Cailey Fleming (Bea) and Fiona Shaw (Grandmother), we talk about how they got involved in the film, working with John Krasinski, keeping things practical on set so it felt real, the joys of childhood and imagination, on-set fun with Ryan Reynolds and who they would love to voice their own IF if they had the choice.

You can watch the full interview below:

IF opens in cinemas on May 17th.