Watch The Black Square (2021) HD Full Movie Free on solarmovie.do. Watch The Black Square (2021) online free. Two art thieves have stolen the famous "Black Square" of Russian painter Kasimir Malevich. They plan...Two art thieves have stolen the famous "Black Square" of Russian painter Kasimir Malevich. They plan to meet their clients on a cruise ship to hand over the looted art. However, things are not going quite as planned..