There are plenty of films that have documented the harmful effects of single-use plastics, but one documentary in particular has resulted in lasting change. A new study found that Blue Planet II, narrated by David Attenborough, has inspired people in the U.K. and the U.S. to use 53 percent fewer single-use plastics over the last year. Inspired by what is being dubbed the Attenborough Effect, people are investing in reusable bags for groceries and other packaging like never before.