He started his career as director for
Matt O'Callaghan's The Itsy Bitsy Spider. He first gained critical attention when he co-wrote, produced and directed the short film
Herd, which won several film festival awards, including the Spirit of Slamdance Award at the 1999 Slamdance Festival. The same year, he made his feature film directorial debut with the comedy
Deuce Bigalow: Male Gigolo, starring
Rob Schneider. He worked for various companies including
Disney,
DreamWorks,
MTV,
Nickelodeon,
Universal, and
Sony. He directed the films
Alvin and the Chipmunks: Chipwrecked,
Surviving Christmas and
Sky High. The first two received negative reviews, while the third has received positive reviews. In 2006, he joined
DreamWorks Animation, and was a story artist for
Shrek the Third and Creative Consultant for
Kung Fu Panda. He later directed the movie
Shrek Forever After and voiced the character Butterpants. Mitchell's short film ''Frannie's Christmas'' was preserved by the
Academy Film Archive in 2012. He also voiced Advisor Wedgie (known as "Nerd" for most of the film) in
Monsters vs. Aliens, and Andy "Jack" Beanstalk in
Puss in Boots. He also directed live action sequences on
The SpongeBob Movie: Sponge Out of Water. He not only works on movies but in television as well. He directed and wrote several episodes of
SpongeBob SquarePants. Mitchell will also direct
Nightcrawlers, a supernatural action comedy, a sequel to
Sky High, a live-action-animated adaptation of the book ''We're Not From Here
, and a live-action/animated adaptation of the song Puff, the Magic Dragon''. On April 26, 2023, it was announced that Mitchell was set to direct
the fourth installment in the
Kung Fu Panda franchise, which was released on March 8, 2024. ==Awards==