Question: What is the birthdate of this American film maker and entrepreneur, who was helped by Dennis Muren in 1976 to create the effects for "Star Wars"?

Context articles: Ken Ralston
Dennis Muren
Bruce Nicholson
List of films featuring giant monsters
Star Wars (film)
George Lucas
E.T. the Extra-Terrestrial
Lego Star Wars II: The Original Trilogy
Equinox (film)
Eiji Tsuburaya

Kenneth "Ken" Ralston (born 1954) is an American visual effects artist, currently the Visual Effect Supervisor and Creative Head at Sony Pictures Imageworks.
 Ralston began his career at the seminal commercial animation and visual effects company, Cascade Pictures in Hollywood, where he worked on over 150 advertising campaigns in the early 1970s.
 In 1976, he was hired at Industrial Light & Magic by Dennis Muren to help George Lucas create the effects for "Star Wars".
 He remained in ILM for 20 years before joining Sony Pictures Imageworks as president.
 Ralston is best known for his work in the films of Robert Zemeckis.
Dennis Muren, A.S.C (born November 1, 1946) is an American film special effects artist & supervisor, most notable for his work on the films of Steven Spielberg, James Cameron and George Lucas.
 He has won nine Oscars in total: eight for Best Visual Effects and a Technical Achievement Academy Award.
Bruce Nicholson is a special effects artist who received the Special Achievement Academy Award in 1980 for the visual effects of the film "", which he shared with Brian Johnson, Richard Edlund and Dennis Muren.
This is an alphabetical list of films featuring giant monsters, known in Japan as kaiju.
 One of the first films involving giant monsters was the 1933 classic "King Kong", as developments in cinema and animation enabled the creation of realistic giant creatures.
 The film influenced many giant-monster films in its wake, including many produced in Japan, starting with the adaptation "King Kong Appears in Edo" in 1938, which is now presumed to be a lost film.
 The visual effects in "King Kong", created by Willis O'Brien, inspired future monster film effects artists such as Ray Harryhausen and Dennis Muren.
 Early giant-monster films often had themes of adventure and exploration of unknown regions, and incorporated fights with giant monsters as a climactic element.
Star Wars (later retitled Star Wars: Episode IV – A New Hope) is a 1977 American epic space opera film written and directed by George Lucas.
 It is the first film in the original "Star Wars" trilogy, the first "Star Wars" movie in general, and the beginning of the "Star Wars" franchise.
 Starring Mark Hamill, Harrison Ford, Carrie Fisher, Peter Cushing, Alec Guinness, David Prowse, James Earl Jones, Anthony Daniels, Kenny Baker, and Peter Mayhew, the film's plot focuses on the Rebel Alliance, led by Princess Leia (Fisher), and its attempt to destroy the Galactic Empire's space station, the Death Star.
 This conflict disrupts the isolated life of farmhand Luke Skywalker (Hamill), who inadvertently acquires a pair of droids that possess stolen architectural plans for the Death Star.
 When the Empire begins a destructive search for the missing droids, Skywalker accompanies Jedi Master Obi-Wan Kenobi (Guinness) on a mission to return the plans to the Rebel Alliance and rescue Leia from her imprisonment by the Empire.
George Walton Lucas Jr. (born May 14, 1944) is an American filmmaker and entrepreneur.
E.T. the Extra-Terrestrial is a 1982 American science fiction fantasy film co-produced and directed by Steven Spielberg, and written by Melissa Mathison.
 It features special effects by Carlo Rambaldi and Dennis Muren, and stars Henry Thomas, Dee Wallace, Robert MacNaughton, Drew Barrymore, Peter Coyote and Pat Welsh.
 It tells the story of Elliott (Thomas), a lonely boy who befriends an extraterrestrial, dubbed "E.T.", who is stranded on Earth.
 Elliott and his siblings help E.T. return home while attempting to keep him hidden from their mother and the government.
Lego Star Wars II: The Original Trilogy is a Lego-themed action-adventure video game developed by Traveller's Tales and published by LucasArts and TT Games Publishing.
 It was released on 11 September 2006.
 Part of the "Lego Star Wars" series, it is based on the "Star Wars" science fiction media franchise and Lego Group's "Star Wars"-themed toy line.
 It follows the events of the "Star Wars" films "Star Wars", "The Empire Strikes Back" and "Return of the Jedi".
 The game allows players to assume the roles of over 50 Lego versions of characters from the film series; customized characters can also be created.
 Camera movement was improved from its predecessor—""; and the concept of "vehicle levels" was explored more thoroughly.
 The game was revealed at American International Toy Fair 2006.
 Promotions for the game were set up at chain stores across the United States.
Equinox (also known as The Equinox... A Journey into the Supernatural, and released on home video as The Beast) is a 1970 American independent horror film directed by Jack Woods and Dennis Muren, and starring Edward Connell, Barbara Hewitt, Frank Bonner and Robin Christopher.
 The plot focuses on four teenagers having a picnic in the canyons of California who stumble upon an ancient book containing secrets of a strange world that exists alongside humans, and consequently unleash a plethora of evil creatures and monsters.
Eiji Tsuburaya (円谷 英二 , Tsuburaya Eiji ) (Eiichi Tsumuraya (圓谷 英一 , Tsumuraya Eiichi ) ; July 10, 1901 – January 25, 1970, in Sukagawa, Fukushima) was a Japanese special effects director responsible for many Japanese science-fiction films and television series, being one of the co-creators of the "Godzilla" series, as well as the main creator of the "Ultra Series".
 During his rise to post-war fame in the wake of "Godzilla" (1954), many press accounts gave Tsuburaya's birthdate as July 7, which falls on the high day of the star festival, "Tanabata", a sign of good fortune.
 This is akin to an American saying that they were born on the Fourth of July.
 Tsuburaya's actual birthdate of July 10 has been verified by his last surviving son, Akira, and the company Eiji founded, Tsuburaya Productions, as the official entry in the Tsuburaya Family Register, in researching the official English-language biography on this important figure of cinema, "Eiji Tsuburaya: Master of Monsters", Chronicle Books, 2007.