Complex sentence: She did uncredited polishes on movies in a 15-year stretch from 1991 to 2005, and was hired by George Lucas to polish scripts for his 1992 TV series "The Young Indiana Jones Chronicles" and the dialogue for the "Star Wars" prequel scripts.
Split into simpler sentences: She did uncredited polishes on movies in a 15-year stretch from 1991 to 2005. She was hired by George Lucas to polish scripts for his 1992 TV series "The Young Indiana Jones Chronicles" and the dialogue for the "Star Wars" prequel scripts.