Daniel Radcliffe says of his role in the indie romantic comedy What If, “I don’t want to make it sound like this film wasn’t challenging because it was, but the main challenge I had everyday was just making Zoe laugh and, if you spent any time with her, that is not a particularly hard thing to do.” “This was a film where I didn’t have to get covered in blood or do mad stunts or anything, so yeah, the main challenges were about sort of being true to the character.”