Since you are interested in A documentary by Rebecca Tansley, here is a list of other items that you may find interesting.
Leif Ove Andsnes (piano) with the Mahler Chamber Orchestra
A Beethoven Journey
[ Seventh Art DVD / DVD - released 9/Sep/2016 ]
Leif Ove Andsnes is undoubtedly one of the top pianists of our age. For four years he has been performing and recording the five Beethoven piano concertos, primarily with the Mahler Chamber Orchestra but also with the major conductors & orchestras...