It marks Jewison's feature film directorial debut, after several years as a television director;[3] it also marks Stanley Margulies' feature film producer debut, after having been executive producer on the television series Tales of the Vikings for Brynaprod.[4][5] The film was shot on location at Disneyland and at Harrah's Club in Lake Tahoe, Nevada.[6][7] It was the first motion picture ever to receive permission from Walt Disney to film at the amusement park.[8][9][10] Producers Curtis and Stanley Margulies sent Disney a copy of the script and were surprised when the noted figure phoned them three days later to give his approval, with only a minor alteration to the script.[9] It was the only released film completed by Curtis and Margulies' film production company Curtis Enterprises, as the pair would form a new company, Reynard Productions, shortly afterwards.