Keoghan joins the likes of Tim Roth, Rebecca Ferguson as new to Steven Knights franchise.
In the series finale, Tommy handed the reins of the family business to Ada.
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Details on new roles are being played close to the vest.
Barry Keoghan in ‘Peaky Blinders’Netflix
The country is at war, and so, of course, are our Peaky Blinders.
The sagas continuation is written by Knight who produces alongside Patrick Holland, Murphy and Guy Heeley.
Exec producers include Harper, David Kosse, Jamie Glazebrook, Caryn Mandabach and Andrew Warren.
The movie will be made in association with BBC Film.
