Here I would like to focus on the steps for a documentary on a college.

1. College nosaltgia - Principal
2. Departments (Physical Classes, Laboratories, Technical teaching, Excursions, Interviews of teachers in between)
2a. Research works , Seminars
2b. Infrastructure and Building Committee (Library, Auditorium, Lift, Conference room, Smart board facility)
3. Extension activities (NSS, Eco Club, Health unit)
4. Governance (Principal, Bursar, governing body meetings, conference room meeting, office(including bursar office), interviews of governing body, Teacher's Council
5. Student activity (Union, Sports, Fest, Wall paintings, College magazine, Student management, Students discussing, New students reaction)

So this is the order in which you might do a documentary on an institution.