Karen K. H. Sim began her documentary filmmaking career as an editor on Maro Chermayeff’s JUILLIARD. She then further honed her skills in storytelling by working with PBS "Frontline" producer/director Ofra Bikel, editing a number of her films, including the Emmy Award winning AN ORDINARY CRIME. Since then, she has worked on many documentary projects as producer, writer and editor, among them NOTHING LEFT UNSAID: GLORIA VANDERBILT AND ANDERSON COOPER (HBO); DAUGHTERS OF DESTINY (a four-part Netflix Original docu-series) and THE FOURTH ESTATE (a four-part series for Showtime). In 2014, Sim won the Sundance Film Festival Documentary Editing Award for WATCHERS OF THE SKY. Most recently, she edited Liz Garbus's WHO KILLED GARRETT PHILLIPS? (HBO) and
produced ANAS V. THE GIANT, a short documentary that premiered at SXSW 2019.