Question: Erick Zonca and Sally Potter, have which mutual occupations?

Context paragraphs:
The Gold Diggers (1983 film): The Gold Diggers is a 1983 British film directed by Sally Potter, her debut, and stars Julie Christie, Kassandra Colson and Siobhan Davies.  It was written by Sally Potter and Rose English.  The movie was made with an all-female crew, and features photography by Babette Magolte and a score by Lindsay Cooper.

Oh Moscow: Oh Moscow is a 1991 live album by English experimental musician and composer Lindsay Cooper.  It is a recording of a song cycle of the same name performed at the 7th Victoriaville Festival in Quebec, Canada on 8 October 1989.  The work was composed in 1987 by Cooper with lyrics written by English film director and screenwriter Sally Potter.  The song cycle reflects on the Cold War that divided Europe at the time.

The Dreamlife of Angels: The Dreamlife of Angels (French: "La Vie rêvée des anges" ) is a 1998 French drama film directed by Erick Zonca.  The film was selected as the French entry for the Best Foreign Language Film at the 71st Academy Awards, but was not accepted as a nominee.

Julia (2008 film): Julia is a 2008 French crime drama film, directed by Erick Zonca, starring Tilda Swinton.  It was shot in California and Mexico.  The film was inspired by the John Cassavetes film "Gloria".

Ginger &amp; Rosa: Ginger & Rosa is a 2012 drama film written and directed by Sally Potter and distributed by Artificial Eye.  The film premiered at the Toronto International Film Festival on 7 September 2012, and was released on 19 October 2012 in the United Kingdom.

The Tango Lesson: The Tango Lesson (Spanish: 'La lección de tango' ) is a 1997 drama film written and directed by Sally Potter.  It is a semi-autobiographical film starring Potter and Pablo Verón, about Argentinian Tango.

Erick Zonca: Érick Zonca (born 10 September 1956) is a French film director and screenwriter, best known for his critically acclaimed, award-winning 1998 feature film debut "The Dreamlife of Angels".  The film won the Best Actress award at the 1998 Cannes Film Festival.

Sally Potter: Charlotte Sally Potter, OBE (born 19 September 1949) is an English film director and screenwriter.

Lindsay Cooper: Lindsay Cooper (3 March 1951 – 18 September 2013) was an English bassoon and oboe player, composer and political activist.  Best known for her work with the band Henry Cow, she was also a member of Comus, National Health, News from Babel and David Thomas and the Pedestrians.  She collaborated with a number of musicians, including Chris Cutler and Sally Potter, and co-founded the Feminist Improvising Group.  She wrote scores for film and TV and a song cycle "Oh Moscow" which was performed live around the world in 1987.  She also recorded a number of solo albums, including "Rags" (1980), "The Gold Diggers" (1983) and "Music For Other Occasions" (1986).

Yes (film): Yes is a 2004 film written and directed by Sally Potter.  It stars Joan Allen, Simon Abkarian, Samantha Bond, Sam Neill, Shirley Henderson, Raymond Waring, Stephanie Leonidas, and Sheila Hancock.

Supporting paragraphs: Erick Zonca Sally Potter
Answer: film director and screenwriter