The third installment in the 'Heaven, Hell & Purgatory' trilogy that Krzysztof Kieslowski and Krzysztof Piesiewicz wrote before Kieslowski's death. The first, Heaven (2002) was directed by Tom Tykwer and the second, Wie in der Hölle (2005) was directed by Danis Tanovic.
The painting, "Angel with a violin", is by Melozzo da Forli and was painted in 1480 (from credits).