Knightley says she remembers it all like it was yesterday. “It's funny how you just remember extreme embarrassment. I remember coming in in the morning, being like, [gasps] 'Oh wow, I've got another head on my head. What are we going to do? There's nothing we can do about this,’” she says. “But there is, because you can always put a hat over it. I was actually very grateful for that hat. I have a lifetime of gratitude for that hat."