Grave Decisions (2006)

In this black comedy set in small-town Bavaria, 11-year-old Sebastian thinks you can never be too young to be a murderer. Hes convinced that he killed his mother on the day he was born and is certain hes already been condemned to purgatory. Deciding he might be able to knock off a few years of his sentence by doing good deeds, Sebastian sets out to find a wife for his father Lorenz. When Lorenz and Sebastians schoolteacher Veronika fall madly in love with each other, it seems the heavens must be smiling. Theres just one hitch Veronika is married.