Downton Abbey's Lily James was so "uptight" she nearly had a "heart attack" when the cast played a prank on her.
Being the new girl among such an established cast was initially difficult for Lily.
"I feel really at home now. At first I was so uptight and having breakdowns," she admitted to the British edition of OK! magazine.
"It's a scary thing to be joining a show when it's so brilliant. On my first day they all hid and jumped out and nearly gave me a heart attack!"
Downton Abbey has famous fans around the globe, including Britain's Duke and Duchess of Cambridge.
Working alongside the show's big stars has given Lily a lot of valuable experiences.
"[Michelle] is amazing. I don't know what I'd have done without her. She gives me help and advice and Laura [Carmichael] does too," she revealed.
"[Dame Maggie Smith] is one of the greatest actresses ever. To be with her on set is a gift. She's amazing and funny and chilled. [Most of her quips] aren't scripted. It's the way she says it or the looks she gives - it's gold. She has loads of quips off camera too."
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