Blithe Spirit is a 1945 English fantasy-comedy film directed by David Lean. The screenplay by Lean, cinematographer Ronald Neame and associate producer Anthony Havelock-Allan is based on producer Noël Coward's 1941 play of the same name, the title of which is derived from the line "Hail to thee, blithe Spirit! Bird thou never wert" in the poem "To a Skylark" by Percy Bysshe Shelley.