Das tapfere Schneiderlein(2008)

He killed seven flies in one swat.

Poor but confident and resourceful tailor David trusts, after killing seven flies in one swat, he's a match for any challenge and sets out to prove himself in the wide world. After luck and cunning help him deal with giant Lothar, he arrives at the castle of petty king Ernst, who is ruled by constant migraine and his ambitious, manipulative court counsellor Klaus, who desires to succeed by winning brat princess Paula's hand and claims to be the only saviour who can rid the land of three supernatural dangers.