IFC Films, Motion Picture Capital, The Welsh Government and Ffilm Cymru Wales present ; a Reliance Entertainment Productions 6, Mad As Birds and Ella Communications production ; in association with West Madison Entertainment ; produced by Andy Evans, Sean Marley, Ade Shannon, Laure Vaysse, Sarah Townsend ; story by Eddie Izzard and Celyn Jones ; screenplay by Celyn Jones, Eddie Izzard and Andy Goddard ; directed by Andy Goddard
T︠S︡entralʹnai︠a︡ kinostudii︠a︡ detskikh i i︠u︡nosheskikh filʹmov imeni M. Gorʹkogo ; rezhisser-postanovshchik, Tatʹi︠a︡na Lioznova ; avtor st︠s︡enarii︠a︡, I︠U︡lian Semenov