The controversial documentary, produced by Leonardo Dicaprio, is a covert investigation to find the key pieces of the illegal fishing of totoaba that puts in danger of extinction the only Mexican porpoise: the vaquita.

The vaquita, a Mexican cetacean in danger of extinction, is again the center of attention worldwide with the expected world premiere of the documentary "Sea of Shadows" by director Richard Ladkani, and produced by the actor Leonardo DiCaprio.

This film portrays the complex problem surrounding the vaquita in the Upper Gulf of California, lethally tangled between Mexican and Chinese cartels trafficking the totoaba maw between corrupt borders.

Another important character in the documentary is the environmentalist group of Sea Shepherd, whose mission has been -together with the Mexican Navy- focused entirely on the withdrawal of illegal fishing nets within the Upper Gulf and Colorado River Biosphere Reserve.

Video: official trailer of "Sea of Shadows" about the vaquita.

Just like the atmosphere surrounding the vaquita, the film also carries some controversy. This important work had the collaboration of Andrea Costra, founder of Earth League, a non-governmental organization dedicated to the work of intelligence and infiltration to locate illegal groups in the markets that harm the environment; in this case it was the finding of those in charge of transportation, corrupt agents and final buyers.

This project also had the collaboration of Mexican journalist Carlos Loret de Mola, who from his newsletter in Mexico City has maintained coverage of the problem in the Upper Gulf of California, and who even suffered threats from the controversial spokesman, influencer Sunshine Rodríguez.

Andrea Costra assured that this work has been one of the most dangerous that has done to this day, due to the presence of extremely violent cartels, as well as an atmosphere of corruption related to the application of the law in the sea, and municipal and border police.

NatGeo acquired the rights of "Sea of Shadows", and they launched a promotional campaign for this film that could have a positive impact on the actions taken to protect the vaquita from extinction. To this day, multiple civil and environmental organizations are still working in San Felipe, Baja California, and in the Gulf of Santa Clara, Sonora, to eradicate illegal gillnets within the sea, and thereby preserve the marine life of the Gulf of California.

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