This question assesses the correct usage of the word 'interval'. The correct answer is A, 'The interval of the movie was filled with advertisements.', because 'interval' correctly refers to a break or pause in an event. Option B misuses 'interval' as a verb, which is incorrect. Option C incorrectly uses 'interval' to describe a physical space between objects, which is not its primary meaning. Option D incorrectly uses 'interval' as a verb, which is not a standard usage. Understanding the noun form of 'interval' and its common contexts is crucial for answering this question correctly.