In addition to writing the story , Jorge R. Gutierrez , along with his wife , Sandra Equihua , have designed the characters . In an interview with Cartoon Brew , he told them that “ working with the amazing Mexican artists at Ánima Estudios was a blast ! This film is yet another encouraging sign of the endless talent currently brewing in my beloved Mexico . ” The film 's teaser premiered on February 11 , 2014 . As of 19 May 2014 , it has been reported that the film was sold to Top Films Distribution ( Eastern Europe ) , Shooting Star ( Middle East ) and Cine Colombia ( Colombia ) . With the budget of $ 55 million pesos ( $ 4.5 million USD ) , it is the most expensive film produced by Ánima Estudios . The film 's official Mexican trailer was released on 16 January 2015 . The English-language trailer was released on 1 April 2015 . The film was later screened at the 2015 Cannes Film Festival
2015 Cannes Film Festival
2015 Cannes Film Festival
Guardians of Oz