The F Word (released in some countries as What If) is a 2013 Irish-Canadian romantic comedy film directed by Michael Dowse and written by Elan Mastai, based on TJ Dawe and Michael Rinaldi's play Toothpaste and Cigars. The film stars Daniel Radcliffe, Zoe Kazan, Megan Park, Adam Driver, Mackenzie Davis and Rafe Spall.