Casanova ( Also Known As: Казанова) is an Adventure Comedy Drama film directed by Lasse Hallström and written by Jeffrey Hatcher (screenplay), Kimberly Simi (screenplay). It released on 6 January 2006 (USA). The film stars Heath Ledger, Sienna Miller, Jeremy Irons. Heath Ledger plays the fabled romantic as a man who, after failing to win the affection of a particular Venetian woman, strives to discover the real meaning of love.