Final answer:
A thesis statement is important as it conveys the main idea of the film review and summarizes the reviewer's opinion.
Step-by-step explanation:
A thesis statement is important when writing a film review because it conveys the main idea on which the review is based. It serves as a clear and concise summary of the reviewer's opinion and perspective on the film. For example, a thesis statement for a film review could be: 'The film effectively uses symbolism to explore the theme of identity.'
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