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Film critic Roger Ebert gave the film a positive review , describing the film as " a kids ' movie , simply told , with lots of excitement and characters you can care about " and praised every thrilling scene .
 Roger Ebert
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:
 Roger Ebert