Question: How old was director Jeff Tremaine when Jackass Presents: Bad Grandpa debuted?

Context paragraphs:
Jackass 3D: Jackass 3D (also known as Jackass 3) is a 2010 American 3D adult comedy film and the third film in the "Jackass" film series.  It was directed by Jeff Tremaine which he co-produced with Johnny Knoxville and Spike Jonze and co-wrote with Bam Margera, Chris Pontius, Steve-O, Ryan Dunn, Dave England, Jason "Wee Man" Acuña, Preston Lacy, Ehren McGhehey, and Harrison Stone.  The film stars Johnny Knoxville, Bam Margera, Steve-O, Ryan Dunn, Chris Pontius, Preston Lacy, Danger Ehren, Dave England, and "Wee Man".

Death (South Park): "Death" is the sixth episode in the first season of the American animated television series "South Park".  It originally aired on Comedy Central in the United States on September 17, 1997.  In the episode, Grandpa Marvin tries to convince Stan to kill him, while the parents of South Park protest the foul-mouthed cartoon "Terrance and Phillip".  Death himself arrives to kill Kenny, and presents a warning to Grandpa Marvin against forcing others to help him commit suicide.

Jackass Presents: Mat Hoffman's Tribute to Evel Knievel: Jackass Presents: Mat Hoffman's Tribute to Evel Knievel

Loiter Squad: Loiter Squad was an American sketch comedy television series starring Tyler, The Creator, Jasper Dolphin, Taco Bennett, Earl Sweatshirt, and Lionel Boyce from the Los Angeles hip hop group Odd Future.  The show regularly featured other members of the group as well.  Jeff Tremaine, Shanna Zablow, Dimitry Elyashkevich, Lance Bangs, Nick Weidenfeld and Keith Crofford are the show's executive producers.

Jackass Presents: Bad Grandpa: Jackass Presents: Bad Grandpa is a 2013 American hidden camera comedy film directed by Jeff Tremaine and written by Tremaine, Spike Jonze and Johnny Knoxville.  It is the fourth installment in the "Jackass" film series.  The film stars Johnny Knoxville and Jackson Nicoll.  It was produced by MTV Films and Dickhouse Productions and distributed by Paramount Pictures.  The film was released on October 25, 2013.  "Bad Grandpa" has a loose narrative that connects the stunts and pranks together (in a manner reminiscent of "Borat"), as opposed to the three original "Jackass" films which did not have a story.

Opera della Luna: Opera della Luna, founded in 1994, is a British touring theatre troupe of actor-singers focusing on comic works.  Led by artistic director Jeff Clarke, it takes its name from Haydn's operatic setting of Goldoni's farce "Il mondo della luna".  The company presents innovative, usually zany and irreverent, small-scale productions and adaptations of Gilbert and Sullivan, other comic opera and operetta, in English.  Opera della Luna is a registered British charity.

Wildboyz: Wildboyz is an American spin-off television series and follow-up to "Jackass", which debuted in 2003 on MTV and moved to MTV2 in its third season.  Steve-O and Chris Pontius are the stars of the show, who perform stunts and acts with animals, often putting themselves in situations for which they are not trained.  The two are both stars in the hit movies "", "Jackass Number Two" and "Jackass 3D".  They travel to different parts of the globe, performing their stunts in exotic environments while educating their audience on wildlife and local culture.  Season 4, the show's final season, made its debut on January 6, 2006, at 9 pm EST as a part of Sic 'Em Fridays on MTV2.

Jeff Tremaine: Jeffery James Tremaine (born September 4, 1966) is an American film director, film producer, television director, and television producer.  He is most closely associated with the "Jackass" franchise, having been involved since the inception of the first TV show.

Jackass: The Movie: Jackass: The Movie is a 2002 American reality comedy film directed by Jeff Tremaine with the tagline "Do not attempt this at home."  It is a continuation of the stunts and pranks by the various characters of the MTV television series "Jackass", which had completed its unique series run by this time.  The film was produced by MTV Films and Dickhouse Productions and released by Paramount Pictures.

Jackass Number Two: Jackass Number Two is a 2006 American reality comedy film.  It is the sequel to "" (2002), both based upon the MTV series "Jackass".  Like its predecessor and the original TV show, the film is a compilation of stunts, pranks and skits.  The film stars the regular "Jackass" cast of Johnny Knoxville, Bam Margera, Chris Pontius, Steve-O, Ryan Dunn, Dave England, Jason "Wee Man" Acuña, Preston Lacy and Ehren McGhehey.  Everyone depicted in the film plays as themselves.  All nine main cast members from the first film returned for the sequel.  The film was directed by Jeff Tremaine, who also directed "" and produced "Jackass".

Supporting paragraphs: Jackass Presents: Bad Grandpa Jeff Tremaine
Answer: (born September 4, 1966