IT IS hard to overestimate the impact of “An Inconvenient Truth”, not least on the film industry. Al Gore’s 2006 feature-length admonition on the effects of global warming grossed nearly $50m, making it one of the most successful documentaries after “Fahrenheit 9/11” and “March of the Penguins”.

“Eco-documentaries tell the stories of our time,” said Rupert Murray, director of “The End of the Line,”

“There is a general feeling that things are changing faster than they ever have,

“Eco-documentaries are a reflection of that.”

“The End of the Line” uses the same lyrical underwater footage as nature documentaries, such as “The Blue Planet”. But rather than lulling the audience into a false sense that all is well in the oceans, it catches the viewer’s attention with meditative camerawork and lush, dramatic music and then reveals the inconvenient truth about the impact of over-fishing on the oceans.