If you missed the field trip, you need to make it up. See: https://docs.google.com/document/d/1u-18V4F6TSG5n5ObRrEsJvpguD8SDsdJUdytMK77Bq4/edit?usp=sharing

You can get it done at home this weekend or next week (in my office). The film *might* be available here, but no guarantees (and not responsible for user comments): https://youtu.be/xgmlZ2ZEjgE