Do you ever show full-length videos at your church or school for a movie night? Do you show videos as a bonus for students or when a substitute teacher is filling in? If you are doing these things without a license agreement, then you are breaking the law.
While there were some at our location who suggested that we would "never get caught" or that it was "no big deal," for me, the word of our Lord recorded in (Luke 16:10) applied: "He who is faithful in what is least is faithful also in much; and he who is unjust in what is least is unjust also in much."
Doing things the right way is not really that difficult or expensive. I submitted an application for an annual church/school subscripton to CVLI, noting that we had 29 students enrolled. The cost was surpisingly VERY affordable. (It wouldn't cost you anything to get a quote, which in our case was even less than what was noted on the pricing guide).
If you want to be legit, check out the Church Video License International (CLVI) website.