In the middle of the film is an astounding portrayal of tuna fishing eighty years ago. The men stand alongside the boat, knee deep in the ocean, and pull the tuna out off handpoles. They’ve thrown out sardines to bait the tuna and they’re pulling out tuna at about three to the minute. And these are the kind of tuna you only catch in nets anymore, two hundred pounders.

The world of fishing hasn’t gone high tech because people were greedy. The world of fishing has gone high tech because there are far fewer fish today. It’s not that the fishermen got greedy. Okay, sure, some countries got greedy. But the problem is there are too many fishermen out there. Fish like the tuna are part of the mass species extinction that humans are creating.