The 2013 film adaptation of author Joe Hill's 2010 novel Horns was not without it's irony in casting Daniel Radcliffe as the lead character Ignatius "Ig" Perrish. This is due to the novel referencing Radcliffe's most noted on-screen role, Harry Potter, in the following excerpt from the novel:
"Her face was framed by two wings of lank black hair that curled under her long, pointed chin, so she looked like the female version of the wizard who was always giving Harry Potter such a hard time in the movies...Ig had been waiting to read the books with the children he and Merrin had together."
Radcliffe wasn't even suppose to play Ig. Shia LaBeouf was originally cast in the role but ultimately, for unknown reasons, was replaced with Radcliffe. Providence? More irony...God's will? Stay tuned!