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When they disturb the set of a pretentious student-film , the characters use the film " Break-Up " as an example of a better film , eventually dragging the cinematographer Matthias Kirste who is filming them into the discussion .
 Matthias Kirste
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:
 Matthias Kirste