Simon Curtis is directing after helming 2022s feature sequelDownton Abbey: A New Era.
Oscar nomineePaul Giamattiis reprising his role from the TV series as Coras (Elizabeth McGovern) brother Harold Levinson.
New to the film franchise areJoely Richardson,Alessandro NivolaandHouse of the Dragons Simon Russell Beale and Arty Froushan.
(Clockwise from top left) Paul Giamatti, Joely Richardson and Alessandro NivolaGetty Images
Dominic West will also reprise his role as Guy Dexter from the second movie.
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For the moment, theres no word on plot details.
The third feature is written by Fellowes and produced by Gareth Neame, Fellowes and Liz Trubridge.
Fellowes wildly successful period drama started life as a series on ITV in 2011.
It went on to spawn six seasons and two movies.
The first two films, released in 2019 and 2022, grossed a combined $287.3 million globally.
Downton Abbey 3is a Carnival Films production, with Focus Features and Universal Pictures International distributing.
Carnival Films is part of NBCUniversal International Studios, a division of Universal Studio Group.
Focus and Carnival made the production news official Monday on social media.
Focus Features and Carnival Films are thrilled to announce the third film in the beloved Downton Abbey franchise.
