Question: Who directed a 2016 American 3D computer-animated comedy-adventure film produced by Walt Disney Animation Studios , that had an american film director  best known as the writer and director of the 2013 Disney animated feature "Frozen" redited for story contributions to "Zootopia"?
Context: Up is a 2009 American 3D computer-animated comedy-adventure film produced by Pixar Animation Studios and released by Walt Disney Pictures.  Directed by Pete Docter, the film centers on an elderly widower named Carl Fredricksen (Ed Asner) and an earnest young "Wilderness Explorer" (a fictional youth group similar to the Boy Scouts) named Russell (Jordan Nagai).  By tying thousands of balloons to his home, Carl sets out to fulfill his dream to see the wilds of South America and complete a promise made to his late wife, Ellie.  The film was co-directed by Bob Peterson, with music composed by Michael Giacchino. Moana ( ) is a 2016 American 3D computer-animated musical fantasy-adventure film produced by Walt Disney Animation Studios and released by Walt Disney Pictures.  It is the 56th Disney animated feature film.  Directed by Ron Clements and John Musker, co-directed by Don Hall and Chris Williams, the film introduces Auli'i Cravalho as Moana and features the voices of Dwayne Johnson, Rachel House, Temuera Morrison, Jemaine Clement, Nicole Scherzinger, and Alan Tudyk.  The film features music written by Lin-Manuel Miranda, Opetaia Foa'i, and Mark Mancina. Jennifer Michelle Lee (born 1971 as Jennifer Michelle Rebecchi) is an American film director and screenwriter best known as the writer and director of the 2013 Disney animated feature "Frozen", for which she earned an Academy Award for Best Animated Feature.  She also co-wrote "Wreck-It Ralph" (2012) and was credited for story contributions to "Zootopia" (2016). Frozen is a 2013 American 3D computer-animated musical fantasy film produced by Walt Disney Animation Studios and released by Walt Disney Pictures.  It is the 53rd Disney animated feature film.  Inspired by Hans Christian Andersen's fairy tale "The Snow Queen", the film tells the story of a fearless princess who sets off on a journey alongside a rugged iceman, his loyal pet reindeer, and a naïve snowman to find her estranged sister, whose icy powers have inadvertently trapped the kingdom in eternal winter. Zootopia is a 2016 American 3D computer-animated comedy-adventure film produced by Walt Disney Animation Studios and released by Walt Disney Pictures.  It is the 55th Disney animated feature film.  The film was directed by Byron Howard and Rich Moore, co-directed by Jared Bush, and stars the voices of Ginnifer Goodwin, Jason Bateman, Idris Elba, Jenny Slate, Nate Torrence, Bonnie Hunt, Don Lake, Tommy Chong, J. K. Simmons, Octavia Spencer, Alan Tudyk, and Shakira.  The film details the unlikely partnership between a rabbit police officer and a red fox con artist as they uncover a conspiracy involving the disappearance of savage predator inhabitants of a mammalian metropolis. Wreck-It Ralph is a 2012 American 3D computer-animated fantasy-comedy film produced by Walt Disney Animation Studios and released by Walt Disney Pictures.  It is the 52nd Disney animated feature film.  The film was directed by Rich Moore, who has directed episodes of "The Simpsons" and "Futurama", and the screenplay was written by Phil Johnston and Jennifer Lee from a story by Moore, Johnston, and Jim Reardon.  John Lasseter served as the executive producer.  The film features the voices of John C. Reilly, Sarah Silverman, Jack McBrayer, and Jane Lynch.  The film tells the story of the eponymous arcade game villain who rebels against his role and dreams of becoming a hero.  He travels between games in the arcade and ultimately must eliminate a dire threat that could affect the entire arcade and one that Ralph himself unintentionally started. Ralph Breaks the Internet: Wreck-It Ralph 2 is an upcoming American 3D computer-animated comedy-adventure film that is being produced by Walt Disney Animation Studios.  It will be the sequel to 2012's "Wreck-It Ralph", and is scheduled to be released on November 21, 2018 by Walt Disney Pictures. Winnie the Pooh is a 2011 American animated buddy musical comedy film produced by Walt Disney Animation Studios and released by Walt Disney Pictures.  It is the 51st Disney animated feature film.  Inspired by A. A. Milne's stories of the same name, the film is part of Disney's "Winnie the Pooh" franchise, the fifth theatrical "Winnie the Pooh" film released, and Walt Disney Animation Studios' second adaptation of "Winnie-the-Pooh" stories.  Jim Cummings reprises his vocal roles as Winnie the Pooh and Tigger, while series newcomers Travis Oates, Tom Kenny, Craig Ferguson, Bud Luckey, and Kristen Anderson-Lopez provide the voices of Piglet, Rabbit, Owl, Eeyore, and Kanga, respectively.  In the film, the aforementioned residents of the Hundred Acre Wood embark on a quest to save Christopher Robin from an imaginary culprit while Pooh deals with a hunger for honey.  The film is directed by Stephen Anderson and Don Hall, adapted from Milne's books by a story team led by Burny Mattinson, produced by Peter Del Vecho, Clark Spencer, John Lasseter, and Craig Sost, and narrated by John Cleese. "Zootopia" (known as "Zootropolis" in some territories) is a 2016 American 3D computer-animated buddy comedy film produced by Walt Disney Animation Studios and released by Walt Disney Pictures.  The film was directed by Byron Howard and Rich Moore and was based on a screenplay written by Jared Bush (who also co-directed) and Phil Johnston.  "Zootopia" focuses on the unlikely partnership between an ambitious rabbit police officer, Judy Hopps (voiced by Ginnifer Goodwin) and a crafty red fox con artist, Nick Wilde (voiced by Jason Bateman) as they uncover a conspiracy behind the mysterious disappearance of predators from a mammalian metropolis. Meet the Robinsons is a 2007 American computer-animated science fiction comedy film produced by Walt Disney Animation Studios and released by Walt Disney Pictures on March 30, 2007.  The 47th Disney animated feature film, it was released in standard and Disney Digital 3-D versions.  The film is loosely based on characters from the children's book "A Day with Wilbur Robinson", by William Joyce.  The voice cast includes Jordan Fry, Wesley Singerman, Harland Williams, Tom Kenny, Steve Anderson, Laurie Metcalf, Adam West, Tom Selleck, and Angela Bassett.  It was the first film released after John Lasseter became chief creative officer of Walt Disney Animation Studios.
Answer: Byron Howard and Rich Moore