If movie stars John Krasinski, Fiona Shaw, and Cailey Fleming revealed their dream imaginary friends as they spoke to The Independent at the film's London premiere on Tuesday, 7 May.
The fantasy comedy film, directed and written by The Office star, follows a young girl (Fleming) and her neighbour (Ryan Reynolds) who find themselves able to see imaginary friends.
While Shaw and Fleming opted to create some animal-themed Ifs, Krasinski told The Independent he already had an imaginary friend that kept him company - the werewolf-chasing Sam Brace.