HBO has released a first-look photo of Helen Mirren as Catherine the Great.
Richard Roxburgh has also joined the cast of the 4 part co-production with SKY Atlantic.
Written by Nigel Williams and directed by Philip Martin, it follows Catherine at the end of her reign, during which she had a passionate affair with the Russian military commander Grigory Potemkin (Jason Clarke).
Also featuring are Joseph Quinn, Gina McKee, Rory Kinnear, Kevin R. McNally and Sam Palladio.
No word yet on whether this will screen in Australia through Foxtel, or possibly elsewhere given it is a co-production.