Can I use clips from everyone under IoT or just people in my subTopic?

[Cara Reese]

I was just wondering so I know who to ask for clips

[Flat Classroom® Coordinator]

Best to ask your teacher since individual schools and teachers may have their own policies.  If you give proper credit in MLA format at the end of your film (think rolling credits at end of every Hollywood film), a 30 second clip should fit into fair use - but I defer to your teacher's opinion.