Question: Who penciled the comic on which the 2011 comic movie starring Justin Chambers is based?

full_context: Document 1: Bart Allen: Bart Allen is a fictional superhero in the DC Comics Universe . Allen first appeared as the superhero Impulse, a teenage sidekick of the superhero the Flash, before later on becoming the second hero known as Kid Flash. The character first made a cameo appearance in "The Flash" #91 in 1994, while his first full appearance in issue #92, and appeared as the lead character in "Impulse" (1995–2002) and "The Flash: The Fastest Man Alive" (2006–2007). In the latter series, the character became the fourth hero to assume the identity of The Flash. Bart also prominently features in the superhero team titles "Young Justice" and "Teen Titans". As the Flash, Bart was also a core character in 10 issues of "Justice League of America".
Document 2: Superman vs. The Elite: Superman vs. The Elite is an animated superhero film based on "What's So Funny About Truth, Justice & the American Way?," the story published in the comic book "Action Comics" #775 (March 2001). The movie was adapted and written by Joe Kelly, who wrote the comic it was based on, and is directed by Michael Chang. It was released on June 12, 2012. The film also featured the return of George Newbern as Superman, and David Kaufman as Jimmy Olsen, reprising their roles from the DC animated universe. It is the 14th film in the DC Universe Animated Original Movies line.
Document 3: Flashpoint (comics): "Flashpoint" is a 2011 comic book crossover story arc published by DC Comics. Consisting of an eponymous core limited series and a number of tie-in titles, the storyline premiered in May 2011. The core miniseries was written by Geoff Johns and pencilled by Andy Kubert. In its end, the series radically changes the status quo for the DC Universe leading into the publisher's 2011 relaunch, the New 52.
Document 4: Superman/Batman: Apocalypse: Superman/Batman: Apocalypse is a 2010 direct-to-video animated superhero film based on the "Superman/Batman" comic storyline "The Supergirl from Krypton" and is a sequel to "". The art style is partly based on that of Michael Turner, who penciled the "Superman/Batman" comic book arc. The film is the ninth in the DC Universe Animated Original Movies line released by Warner Premiere and Warner Bros. Animation and the first sequel in the line. It was released on September 28, 2010. The film stars Andre Braugher, Kevin Conroy, Tim Daly and Summer Glau. Despite the title, the film focuses primarily on the introduction of Supergirl and her relationship with Superman. Batman plays a supporting role.
Document 5: Justice League: The Flashpoint Paradox: Justice League: The Flashpoint Paradox is a direct-to-video animated film adaptation of the 2011 comic book crossover "Flashpoint" by Geoff Johns and Andy Kubert. It is scripted by Jim Krieg and directed by Jay Oliva. The film stars Justin Chambers as Barry Allen / Flash, C. Thomas Howell as Eobard Thawne / Professor Zoom, Michael B. Jordan as Victor Stone / Cyborg, and Kevin McKidd as Thomas Wayne / Batman. The film also sees actors reprising roles from other DC Animated properties; actors including Kevin Conroy as Bruce Wayne / Batman, Nathan Fillion as Hal Jordan / Green Lantern, Ron Perlman as Deathstroke, Dana Delany as Lois Lane, Vanessa Marshall as Princess Diana / Wonder Woman and Dee Bradley Baker as Etrigan. It is the 17th film in the DC Universe Animated Original Movies series. It was released on July 30, 2013, then re-released on September 10, 2013, as a 2-disc special edition.
Document 6: Justice League (film): Justice League is an upcoming American superhero film based on the DC Comics superhero team of the same name, distributed by Warner Bros. Pictures. It is intended to be the fifth installment in the DC Extended Universe (DCEU). The film is directed by Zack Snyder and written by Chris Terrio and Joss Whedon, from a story by Snyder and Terrio, and features an ensemble cast that includes Ben Affleck, Henry Cavill, Gal Gadot, Jason Momoa, Ezra Miller, Ray Fisher, Ciarán Hinds, Amy Adams, Willem Dafoe, Jesse Eisenberg, Jeremy Irons, Diane Lane, Connie Nielsen, and J. K. Simmons. In "Justice League", Batman and Wonder Woman assemble a team consisting of Flash, Aquaman, and Cyborg to face the catastrophic threat of Steppenwolf and his army of Parademons.
Document 7: Batman v Superman: Dawn of Justice: Batman v Superman: Dawn of Justice is a 2016 American superhero film featuring the DC Comics characters Batman and Superman. Directed by Zack Snyder and distributed by Warner Bros. Pictures, the film is the second installment in the DC Extended Universe (DCEU) following 2013's "Man of Steel". It was written by Chris Terrio and David S. Goyer, and features an ensemble cast that includes Ben Affleck, Henry Cavill, Amy Adams, Jesse Eisenberg, Diane Lane, Laurence Fishburne, Jeremy Irons, Holly Hunter and Gal Gadot. "Batman v Superman: Dawn of Justice" is the first live-action film to feature Batman and Superman together, as well as the first live-action cinematic portrayal of Wonder Woman, Aquaman, Flash and Cyborg. In the film, criminal mastermind Lex Luthor manipulates Batman into a preemptive battle with Superman, whom Luthor is obsessed with defeating.
Document 8: Superman: Grounded: "Grounded" is a 2010-2011 comic book story arc that ran through the "Superman" monthly ongoing series. It was written by J. Michael Straczynski and Chris Roberson, and penciled by Eddy Barrows, with covers by John Cassaday.
Document 9: Justice League: Crisis on Two Earths: Justice League: Crisis on Two Earths is an original direct-to-video animated superhero film released on February 23, 2010. It is based on the abandoned direct-to-video feature "Justice League: Worlds Collide", which was intended as a bridge between the then-concluding "Justice League" animated television series and its then forthcoming sequel series "Justice League Unlimited". "Crisis on Two Earths" was reworked from the "Worlds Collide" script to remove references to the TV series' continuity. The film is directed by Lauren Montgomery & Sam Liu and written by Dwayne McDuffie.
Document 10: The Flash (season 4): The fourth season of the American television series "The Flash", which is based on the DC Comics character Barry Allen / Flash, follows a crime scene investigator with superhuman speed who fights criminals, including others who have also gained superhuman abilities. It is set in the Arrowverse, sharing continuity with the other television series of the universe, and is a spin-off of "Arrow". The season is produced by Berlanti Productions, Warner Bros. Television, and DC Entertainment, with Andrew Kreisberg and Todd Helbing serving as showrunners.
Document 11: Flash Point: Fire Rescue: Flash Point: Fire Rescue is a 2011 thematic cooperative board game designed by Kevin Lanzing with the help of firefighters. The objective is for players to work together to rescue people and animals from a burning building before it collapses. Since the initial release of the game several expansions have been published, which add additional scenarios for players experience. These include fires in a high rise building, a two-story house, and a submarine.
Document 12: Justice League (Smallville): The Justice League is a fictional group of superheroes on the television series, "Smallville", who were adapted for television by Alfred Gough and Miles Millar. The Justice League originally included Oliver Queen, Bart Allen, Victor Stone, and Arthur Curry; Clark Kent did not accept a role until three seasons later. As the team continued to appear in the series, new characters were introduced and subsequently joined the team. The original Justice League first appeared in the DC comic book "The Brave and the Bold" #28 (1960), and consisted of members Superman, Batman, Wonder Woman, Flash, Green Lantern, Aquaman, and the Martian Manhunter. In "Smallville", the team did not make its first official appearance until the season six episode "Justice", although each member had been previously introduced individually on various episodes since season four. In the series, the team never formalized a name for themselves, although the cast and crew officially recognized the team as the "Justice League".
Document 13: Booster Gold (comic book): Booster Gold was an ongoing monthly DC Comics comic book series featuring the eponymous superhero Booster Gold, created by Dan Jurgens. This article is about the second Booster Gold series which began publication in October 2007. After twelve issues, co-writers Geoff Johns and Jeff Katz left the series, leaving Jurgens as the main writer and artist, along with Norm Rapmund as co-artist. With #32, Keith Giffen and J.M. DeMatteis, who wrote the 1980s Justice League International series (of which Booster was a part) took over the series, and was joined by Chris Batista as interior artist and former JLI artist Kevin Maguire as cover artist for #32-36. Giffen, DeMatteis and Batista left the series with #43 and were replaced by a returning Dan Jurgens and Norm Rapmund, who provided the final storyarc of the series, a "Flashpoint" crossover story. The series ended in August 2011 with issue #47.
Document 14: All-Flash: All-Flash, originally published as All-Flash Quarterly, was a comic book magazine series published by All-American Publications and later National Periodicals (DC Comics). The series was the first solo feature given to the comic book character The Flash, who also appeared in the anthologies "Flash Comics", "All-Star Comics", and "Comic Cavalcade". The book ran for 34 issues from 1941 to 1947. The series was originally published on a quarterly basis before changing over to a bi-monthly schedule with issue #6. Each issue regularly contained several stories featuring The Flash, as well as minor back-up features like "Hop Harrigan", "Butch McLobster, The Super Mobster", and "Fat and Slat" by cartoonist Ed Wheelan and, in later issues, "Ton-O-Fun" by Flash co-creator Harry Lampert.
Document 15: Batman: Cataclysm: "Cataclysm" is an 18 chapter DC Comics crossover story arc that ran through the various "Batman" family comics from March to May, 1998. The plot of the storyline centers on Gotham City being hit by a massive earthquake, the epicenter of which is less than a mile from Wayne Manor. In the wake of the destruction, Batman and his allies join the frantic rescue efforts around the devastated city, which soon spirals into chaos. This story arc would act as a catalyst for the Batman comics and its spin-off titles, signaling the beginning of nearly 2 years of storylines that would spring forth in the earthquake's aftermath, culminating in the year-long "Batman: No Man's Land" saga. "Cataclysm" itself takes place a short time after the events of "" and "," two crises which also nearly resulted in Gotham City's destruction.
ground_truth: Andy Kubert