Advertisements Catherine the Great is a British-American miniseries in four parts written by Nigel Williams and directed by Philip Martin for Sky Atlantic and HBO Miniseries. It stars Helen Mirren as the titular Catherine the Great. The miniseries premiered in its entirety on 3 October 2019 on Sky Atlantic in the United Kingdom. It will premiere on 21 October 2019 on HBO in the United States. (wiki) The first episode was last night on HBO (Mon Oct 21), and the other three eps will air over the next three Mondays. I haven't watched it yet, but wanted to get a thread started. The majority of filming took place in Lithuania, due to scenery of the country and favourable film tax incentives - Vilnius, Pažaislis monastery and Trakai Island Castle. A large part of filming, in particular the episodes happening in the throne room, many corridor episodes, the cross-dressing ball at the end of Episode 1, the scenes that take place on the stairs outside the palace, have been filmed in Rundāle Palace in Latvia. Other scenes have been filmed in St Petersburg and Catherine Palace in Tsarskoye Selo Russia.