Y'all got me wondering so I looked for Church of Bones movie and found a documentary short
The Ossuary (1970)
Kostnice (original title)
Not Rated | 10min | Documentary, Short, Horror | July 1994 (Czech Republic)
A non-narrative voyage round Sedlec Ossuary, which has been constructed from over 50,000 human skeletons (victims of the Black Death).
Director: Jan Svankmajer
Writer: Jan Svankmajer
Then I searched 'church of bones movie Nyamata church'
and found
The Church Of Bones
http://www.youtube.com/watch?v=6RXL8XpsclA
The Church of Bones at Sedlec near Kutna Hora, Czech Republic.
A couple of years ago, Janer B & I visited Prague (Praha) and whilst there took a side trip to Kutna Hora, a UNESCO World Heritage Site. Sedlec is a small town suburb of Kutna Hora and it is where the cemetery church of All Saints is located, complete with it's basement of bones...
Church of Bones - Kutnรก Hora Ossuary Kostnice Sedlec Monastery
http://www.youtube.com/watch?v=XW_gZ83fnVU
JOURNEY TO THE AMAZING CHURCH OF BONES - CZECH REPUBLIC
http://www.youtube.com/watch?v=-x5iKG-e4EU
Bone Church | 100 Wonders | Atlas Obscura
http://www.youtube.com/watch?v=eznm5GUWtiA
I then did a search at IMdb for keywords "Ossuary" and "Skeleton"
Found...
The Ballad of Narayama (1983)
Narayama bushikรด (original title)
Not Rated | 2h 10min | Drama | 29 April 1983 (Japan)
As Above, So Below (2014)
R | 1h 33min | Horror, Mystery, Thriller | 29 August 2014 (USA)
Cities of the Underworld
TV-PG | 43min | Documentary, History | TV Series (2007โ )
Catacombs (2007)
R | 1h 40min | Horror, Thriller | 6 July 2007 (Italy)
Scariest Places on Earth (2000โ )
TV-PG | Horror, Mystery, Reality-TV