Question

we bought the at popcorn movies.

Explanation:

To form a grammatically correct sentence, we need to arrange the words in the proper order. The subject "we" should start the sentence, followed by the verb "bought", then the object "the popcorn", and finally the prepositional phrase "at the movies" (note: "movies" here is part of the prepositional phrase contextually, and we adjust the order to make sense: "We bought the popcorn at movies." (assuming "movies" is used informally here; a more standard version could be "We bought the popcorn at the movies," but with the given words, we use what's provided).

Answer:

We bought the popcorn at movies.