Citizen X
Citizen X is a 1995[1] American television film which covers the efforts of detectives in the Soviet Union to capture an unknown serial killer of women and children in the 1980s, and the successive bureaucratic obstacles they consistently encounter. The film is based upon the true story of Soviet serial killer Andrei Chikatilo, who was convicted in 1992 of the murder of 52 women and children committed between 1978 and 1990. It stars Stephen Rea, Donald Sutherland, and Max Von Sydow.
Three Identical Strangers (Five things you may not know)
3 Identical Strangers (wiki)
Three Identical Strangers is a 2018 documentary film directed by Tim Wardle and starring Edward Galland, David Kellman, and Robert Shafran. It examines a set of American identical triplets, born in 1961 and adopted as six-month-old infants by separate families, unaware that each child had brothers. The separations were done as part of an undisclosed scientific “nature versus nurture” twin study, to track the development of genetically identical siblings raised in differing circumstances. Combining archival footage, re-enacted scenes, and present-day interviews, the documentary reveals how the brothers discovered one another at age 19 and thereafter sought to understand the circumstances of their separation.[3][4]
The film premiered at the 2018 Sundance Film Festival,[5] where it won the U.S. Documentary Special Jury Award for Storytelling.[6] The film was a nominee in the Best Documentary category at the 72nd British Academy Film Awards. It was also on the shortlist of 15 films considered for the Academy Award for Best Documentary Feature, out of 166 candidates
Elena 
Elena (With Philip Glass soundtrack)
It premiered in the Un Certain Regard section at the 2011 Cannes Film Festival[1][2] where it won the Special Jury Prize.
Peter Bradshaw review
(The above review was written earlier. Since then Andrey Zvyagintsev directed Leviathan.)
