Complex sentence: Steve recites one on a lark, unintentionally conjuring up the ghost of Blackbeard (Peter Ustinov), who appears as a socially-inappropriate drunkard whose wife cursed him to an existence in limbo, unless he can perform a good deed.
Split into simpler sentences: Steve recites one on a lark, unintentionally conjuring up the ghost of Blackbeard (Peter Ustinov), who appears as a socially-inappropriate drunkard. His wife cursed him to an existence in limbo unless he can perform a good deed.