Complex sentence: Cynthia Basinet recorded it for Jack Nicholson as a Christmas gift, Cynthia's version is featured in the cult classic movie "Party Monsters" which has been attributed to Marilyn Monroe for several years.
Split into simpler sentences: Cynthia Basinet recorded it for Jack Nicholson as a Christmas gift, Cynthia's version is featured in the cult classic movie "Party Monsters". This version has been attributed to Marilyn Monroe for several years.