Question:  Steven Spielberg and Bill Bixby are both actors and directors, is this true?

Context articles: Estelle Harman
Steven Spielberg
Pinky, Elmyra &amp; the Brain
The Kentucky Fried Movie
Bill Bixby
The Death of the Incredible Hulk
Clambake
Influence of Stanley Kubrick
Kenneth Wannberg
Frank Marshall (producer)

Estelle Harman (September 11, 1922 – April 15, 1995) was an acting coach in Los Angeles.
 She began as an acting instructor at UCLA in the 1950s, then was hired by Universal Studios as Head of Talent to groom their stable of film actors, which included Rock Hudson, Bill Bixby, Tony Curtis and Audie Murphy.
Steven Allan Spielberg, {'1': ", '2': ", '3': 'KBE', '4': "} , {'1': ", '2': ", '3': 'OMRI', '4': "} (born December 18, 1946) is an American director, producer, and screenwriter.
 He is considered one of the founding pioneers of the New Hollywood era, as well as being viewed as one of the most popular directors and producers in film history.
 He is also one of the co-founders of DreamWorks Studios.
Steven Spielberg Presents Pinky, Elmyra & the Brain is the retooling of the animated television series "Pinky and the Brain" (itself being a spin-off from "Animaniacs"), with the title characters being joined by Elmyra Duff from "Tiny Toon Adventures".
 The show is executive produced by Steven Spielberg and the series was produced by Amblin Television in association with Warner Bros.
 Animation, and aired from 1998 to 1999 on The WB Television Network, running for 13 episodes.
 It was Spielberg's last collaborative effort with Warner Bros.
 Animation.
The Kentucky Fried Movie is a 1977 independently made American anthology comedy film, produced by Kim Jorgensen, Larry Kostroff, and Robert K. Weiss and directed by John Landis.
 Among the numerous star cameos are George Lazenby, Bill Bixby, Henry Gibson, Barry Dennen, Donald Sutherland, Tony Dow, Stephen Bishop, and the voice of Shadoe Stevens.
 According to David Zucker on the DVD commentary track, David Letterman auditioned for the role of the newscaster but was not selected.
 The film also features many former members of The Groundlings and The Second City.
 The "feature presentation" portion of the film stars Evan C. Kim and hapkido Grand Master Bong Soo Han.
 "The Kentucky Fried Movie" marked the first film appearances of a number of actors who later became famous, as well as being the vehicle that launched the careers of the Zucker brothers, Abrahams, and Landis.
Wilfred Bailey Everett "Bill" Bixby III (January 22, 1934 − November 21, 1993) was an American actor, director, producer, and frequent game-show panelist.
 His career spanned more than three decades, including appearances on stage, in films, and on television series.
 He is known for his roles as Tim O'Hara on the CBS sitcom "My Favorite Martian", Tom Corbett on the ABC sitcom "The Courtship of Eddie's Father", and stage illusionist Anthony Blake in the NBC crime drama series "The Magician", but is perhaps best known for his role as scientist Dr. David Banner on the CBS science-fiction drama series "The Incredible Hulk".
The Death of the Incredible Hulk is a 1990 American made-for-television superhero film, the last of three revival films based on the 1978–1982 television series "The Incredible Hulk".
 Bill Bixby reprises his role as Dr. David Bruce Banner and Lou Ferrigno returns to play the Hulk.
 It was filmed in Vancouver, British Columbia, Canada.
 Prior to Bill Bixby's death in 1993, there was talk of a movie "The Rebirth of the Incredible Hulk" television movie which would resurrect the character.
Clambake is a 1967 American musical film directed by Arthur H. Nadel and starring Elvis Presley, Shelley Fabares, and Bill Bixby.
 Written for the screen by Arthur Browne Jr., the film is about the heir to an oil fortune who trades places with a water-ski instructor at a Florida hotel to see if girls will like him for himself, rather than his father's money.
 "Clambake" was the last of Presley's four films for United Artists.
 The movie reached number 15 on the national weekly box-office charts.
Stanley Kubrick is regarded by film critics and historians as one of the most influential directors of all time.
 Leading directors, including Martin Scorsese, Steven Spielberg, George Lucas, James Cameron, Woody Allen, Terry Gilliam, the Coen Brothers, Ridley Scott, Paul Thomas Anderson, Christopher Nolan, David Lynch, and George A. Romero, have cited Kubrick as a source of inspiration, and in the case of Spielberg, collaboration.
 In an interview for the "Eyes Wide Shut" DVD release, Steven Spielberg comments that "nobody could shoot a picture better in history", and that Kubrick told stories in a way "antithetical to the way we are accustomed to receiving stories".
 Writing in the introduction to a recent edition of Michel Ciment's "Kubrick", film director Martin Scorsese notes most of Kubrick's films were misunderstood and under-appreciated when first released, only to be considered masterpieces later on.
Kenneth Gail Wannberg (born June 28, 1930, in Los Angeles, California) is an American composer and sound editor.
 He has worked extensively with the composer John Williams on some of the biggest box office films of all time.
 His music editing credits include "Star Wars" (George Lucas, 1977), "Raiders of the Lost Ark" (Steven Spielberg, 1981), "JFK" (Oliver Stone, 1991), "Schindler’s List" (Spielberg, 1993), and "Harry Potter and the Prisoner of Azkaban" (Alfonso Cuarón, 2004).
 In 1986 Wannberg won an Emmy for his sound editing on Steven Spielberg’s Amazing Stories series.
Frank Wilton Marshall (born September 13, 1946) is an American film producer and director, often working in collaboration with his wife, Kathleen Kennedy.
 With Kennedy and Steven Spielberg, he was one of the founders of Amblin Entertainment.
 In 1991, he founded, with Kennedy, The Kennedy/Marshall Company, a film production company which has a contract with DreamWorks.
 Since May 2012, with Kennedy taking on the role of President of Lucasfilm, Marshall has been Kennedy/Marshall's sole principal.
 Marshall has consistently collaborated with directors Steven Spielberg, Paul Greengrass and Peter Bogdanovich.