Are Carl Reiner and Sofia Coppola both directors ?
yes
Sofia Coppola
Sofia Carmina Coppola ( ; born May 14, 1971) is an American screenwriter, director, producer and former actress.
Carl Reiner
Carl Reiner (born March 20, 1922) is an American comedian, actor, director and writer whose career spans nearly seven decades.
Anton Coppola
Antonio Coppola (born March 21, 1917) is an American opera conductor and composer.
 He is the uncle of film director Francis Ford Coppola and actress Talia Shire, as well as the grand-uncle of Nicolas Cage, Sofia Coppola, Gian-Carlo Coppola, Jason Schwartzman and Robert Schwartzman, and is the younger brother of American composer and musician Carmine Coppola. Estelle Reiner
Estelle Reiner (June 5, 1914 – October 25, 2008), described by "The New York Times" as "matriarch of one of the leading families in American comedy", was an actress and singer.
 She was the wife of Carl Reiner and the mother of Rob Reiner. The Comic
The Comic is a 1969 Pathécolor comedy film co-written, co-produced, and directed by Carl Reiner.
 It stars Dick Van Dyke as Billy Bright (which was the original title of the film), Michele Lee as Bright's love interest, and Reiner himself and Mickey Rooney as Bright's friends and work colleagues.
 Reiner wrote the screenplay with Aaron Ruben; it was inspired by the end of silent film era, and, in part, by the life of silent film superstar Buster Keaton. Sarah Flack
Sarah Flack is an American film editor.
 She is notable for collaborating extensively with American independent film directors Steven Soderbergh ("Schizopolis", "The Limey", "Full Frontal") and Sofia Coppola ("Lost in Translation", "Marie Antoinette" and "Somewhere"). Gia Coppola
Gian-Carla "Gia" Coppola (born January 1, 1987) is an American film director, screenwriter, and actress.
 She is a granddaughter of Francis Ford Coppola, the daughter of Gian-Carlo Coppola and the niece of Roman Coppola and Sofia Coppola. Annie Reiner
Sylvia Anne "Annie" Reiner (born 1949) is an American author, playwright and poet.
 She is the daughter of American producer, writer and actor Carl Reiner, and actress Estelle Reiner.
 She is the sister of actor and director Rob Reiner. Brian Reitzell
Brian Reitzell (born December 24, 1965) is a musician, composer, record producer and music supervisor best known for his work on many film and TV soundtracks.
 He is notable for working extensively with the American film director Sofia Coppola (The Virgin Suicides, Lost in Translation, Marie Antoinette, "The Bling Ring").
 He was formerly the drummer for the LA punk band Redd Kross.
 He has collaborated extensively with the French electronica duo Air, having performed drums on their albums "The Virgin Suicides" and "10 000 Hz Legend".
 Reitzell also toured with the band on their "Moon Safari" tour in 1998 and again in 2000 and 2001.
 In 2003 he was nominated for a BAFTA, along with Kevin Shields of My Bloody Valentine, for the score to Sofia Coppola's film "Lost in Translation". The Godfather Part III
The Godfather Part III is a 1990 American crime film written by Mario Puzo and Francis Ford Coppola, and directed by Coppola.
 A sequel to "The Godfather" (1972) and "The Godfather Part II" (1974), it completes the story of Michael Corleone, a Mafia kingpin who attempts to legitimize his criminal empire.
 The film also includes fictionalized accounts of two real-life events: the 1978 death of Pope John Paul I and the Papal banking scandal of 1981–82, both linked to Michael Corleone's business affairs.
 The film stars Al Pacino, Diane Keaton, Talia Shire, and Andy García, and features Eli Wallach, Joe Mantegna, George Hamilton, Bridget Fonda, and Sofia Coppola.