CinemaCon brought fresh details about the "Downton Abbey" movie when Focus Features revealed a new trailer.

The preview features the tagline, "We've been expecting you," per Variety, and it shows the family and their domestic servants preparing for the arrival of King George V and Queen Mary. Geraldine James was previously rumored to be playing the role of the queen, based on photographs from September. James is one of multiple new cast members, including Imelda Staunton, Kate Phillips, Simon Jones, David Haig, Tuppence Middleton, and Stephen Campbell Moore.

The film is set in 1927, ahead of the Great Depression, and times continue to change. Lady Mary (Michelle Dockery) is shown in the preview to be considering leaving the ancestral estate. However, she gets a reminder from her maid, Anna Bates (Joanne Froggatt), about the importance of her role there, Variety reports.

Dockery and Froggatt return alongside their original "Downton Abbey" co-stars Hugh Bonneville, Elizabeth McGovern, Laura Carmichael, Jim Carter, Brendan Coyle, Kevin Doyle, Matthew Goode, Douglas Reith, Harry Hadden-Paton, Robert James-Collier, Allen Leech, Phyllis Logan, Sophie McShera, Lesley Nicol, Penelope Wilton, and Maggie Smith. The Michael Engler-directed film is due out Sept. 20. We're RSVPing yes to the festivities.

[via: Variety]