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Herbert Stothart had to compose the film 's background score , while A. Arnold Gillespie had to perfect the various special effects that the film required , including many of the rear projection shots .
 Herbert Stothart, A. Arnold Gillespie
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Herbert Stothart, A. Arnold Gillespie