• South Korea
    20 February 2014
  • USA
    13 July 2014
    (Asian Film Festival of Dallas)
  • Canada
    20 July 2014
    (Fantasia International Film Festival)
  • South Korea
    28 September 2014
    (Indie-Anifest)
  • Spain
    12 October 2014
    (Sitges International Fantastic Film Festival)
  • UK
    18 October 2014
    (London Film Festival)
  • Hong Kong
    26 October 2014
    (InDPanda International Film Festival)
  • Spain
    November 2014
    (Gijón International Film Festival)
  • UK
    7 November 2014
    (Leeds International Film Festival)
  • Belgium
    14 February 2015
    (aNiMa Brussels Animation Festival)
  • USA
    1 March 2015
    (New York International Children's Film Festival)
  • Netherlands
    20 March 2015
    (Holland Animation Film Festival)
  • Argentina
    16 April 2015
    (Buenos Aires International Festival of Independent Cinema)
  • China
    19 April 2015
    (Beijing International Film Festival)
  • Italy
    6 May 2015
    (Future Film Festival)
  • USA
    24 May 2015
    (Seattle International Film Festival)
  • Spain
    15 July 2015
    (Asian Summer Film Festival)
  • Spain
    19 August 2015
    (internet)
  • Spain
    29 August 2015
    (Madrid) (premiere)
  • Kazakhstan
    19 September 2015
    (Eurasia Film Festival)
  • Spain
    23 September 2015
    (video premiere)
  • USA
    11 October 2015
    (Mill Valley Film Festival)
  • Japan
    1 November 2015
    (New Chitose Airport International Animation Festival)
  • France
    2 November 2015
    (Utopiales: The Nantes International Science Fiction Film Festival)
  • Russia
    9 November 2015
    (Big Cartoon Festival Moscow)
  • India
    15 November 2015
    (International Children's Film Festival India)
  • Hungary
    27 November 2015
    (Anilogue International Animation Festival)
  • Spain
    12 December 2015
    (Madrid) (technical release)
  • USA
    28 December 2015
    (Miami Children's Film Festival)
  • USA
    24 January 2016
    (KidFilm Festival)
  • Sweden
    13 April 2016
    (Stockholm Filmfestival Junior)
  • USA
    2 June 2018
    (limited)
  • Canada
    5 June 2018
    (video premiere)
  • USA
    5 June 2018
    (English version) (video premiere)