Grammar: Confused about the subject, and adjective of this sentence?

The sentence is about someone going to the movies. Who is going to the movies? We. The subject will always be a noun or pronoun. It might help if you turn the sentence around. We are going to the movies when the cl is over. We is the subject of what the sentence is talking about, going to the movies. The adverb in the sentence is when. Study the eight parts of speech and what each of them do.