Did you know that 'Emma' is not actually Emma Stone's real name?
Turns out when Emma—real name Emily Scott—was 16, she was told by SAG that she couldn't use her own name if she was going to be an actress.
"Well, I was 16 when I found out at SAG I couldn't have my own name," Emma said to W magazine.
"So to ask a 16-year-old to pick a new name is really an interesting process, because I was like, 'I'm going to be Riley. My name is going to be Riley Stone.'
"And so my name was Riley Stone for about six months and I did a guest spot on Malcolm In The Middle and one day they were like, 'Riley, Riley,' and I had no idea who they were talking to and they were like, 'Hey, hey come on we need you on set.' And I was like, 'Oh I'm not Riley, I can't be Riley.'"
Here she is in Malcolm In The Middle...
She then tried out another option…
"I had the option of Emily J. Stone and it's kind of like Michael J. Fox, and I love Michael J. Fox, but I don't think I could pull off the J," she said.
"So then I changed it to Emma because you know it's closer to Emily, but most people call me 'M,' that know me well."
Not a bad system really.
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This article originally appeared on Cosmopolitan.co.uk. Minor edits have been made by the Cosmo.ph editors.