The film adaptation of Ionesco’s play includes several changes to the original text. The setting was changed from France to a contemporary United States, incorporating a comically venerated photograph of President
Richard Nixon; the lead characters Bérenger and Jean were renamed Stanley and John. A new music score by
Galt MacDermot was created for the film, and a dream sequence was added to the story. Zero Mostel, who starred in the 1961 Broadway production of the play, reprised his role as the man who transforms into a rhinoceros. During production, Mostel reportedly refused to smash any props during the rehearsal of his transformation scene, claiming an aversion to destroying property. Although O'Horgan considered using a live animal to depict the transformation, no rhinoceros is seen on camera; shadows, POV camera angles, and stampede rumbles suggest the animals' presence. ==Reception==