Died of cancer after writing the first version of the script of
Star Wars: Episode V - The Empire Strikes Back (1980). Because it was an unfinished script,
George Lucas revised her draft and engaged
Lawrence Kasdan to finish the screenplay. It is unclear how many of her original ideas made it into the final script (the "Wampa" was called an "ice creature", the Tauntauns were "snow lizards", and Yoda was named Buffy), but Lucas gave her credit on the screenplay, while he himself is uncredited for his work on the screenplay itself and only is credited as writing the story of Empire.