The trailer is full of alarming data-based statements: for example, the food that's wasted in Europe could feed the hungry people of the world twice over.
What's interesting about this issue is that it's one where everyone can immediately take action, in their own home. And, on top of that, it's an area where it shouldn't take the food manufacturers and retailers too much effort to stop being part of the problem and start being part of the solution.
I still have one of Pret a Manger's founding principles in mind - at the end of the day, all unsold sandwiches are given away to the homeless.
So maybe the big supermarkets and food companies can turn their attention away from "3 for 2s" and BOGOFS, grotesquely large packs and silly sell-by dates and focus on this issue instead.
In the long run, only good can come of it.