"I don't think he was scared [of me], because he's been along with me this whole journey," Biel shared. "I, of course, told him what the book was, what it was about, what happens, so he has been in the know for a long time. But I think it was definitely weird for him to see me like that. I hope that means that we're doing a good job and we're making it look really realistic."
Watch the video below for more of what she had to say.