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Dame Maggie Smith once told her Downton Abbey co-star that she looked like a "toilet roll cover".
Lily James admits some of the stunning 1920s dresses from the award-winning UK TV show can be less than flattering.
The 23-year-old British star confessed that as well as despising the hats her character Lady Rose MacClare is required to wear on set, one gown in particular sparked ridicule from her fellow cast members.
"I feel absolutely ridiculous in some of the hats, though," Lily told the latest edition of British magazine Grazia. "In the third series I had to wear a blue tiered dress and Maggie Smith told me I looked like a toilet roll cover, which I did."
In the hotly-anticipated special Christmas episode of the worldwide phenomenon, we see Lily's character more involved in the plotline than previously. The up-and-coming star has revealed that viewers will get to see Lady Rose being even more mischievous.
"I love playing such a naughty character," Lily continued about her role. "Lady Rose breaks all of the rules and pushes the boundaries."
Lily appeared in this year's hit movie Wrath of the Titans, alongside Sam Worthington and Liam Neeson.
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