The actress, who played Lady Mary Crawley on the TV show, is as keen as fans to see a script for a rumoured movie, which Julian Fellowes, the creator of the period drama, has written, and she'd love to hook up with her castmates again.

Asked about a potential big screen return for Lady Mary, the 35-year-old actress told E!, "I don't know when, but I'm hopeful," adding, "I miss the show and my friends on the show.''

Castmates Joanne Froggatt and Jim Carter are also waiting for some firm news about a potential film, with Carter recently revealing he has been asked to keep his diary free for a mystery project in the near future, but confessed, "Nobody has seen a script.''

The Downton Abbey TV series ended in 2015.