Join the Blackfish debate on November 21st

Blackfish will be shown on BBC4 next Thursday, 21st November at 9pm GMT. Tune in, or watch along with your own DVD or Blu-ray copy, share your thoughts on the issues raised in the film with us on Twitter and you could win prizes!

Blackfish tells the story of Tilikum, a performing killer whale that killed several people while in captivity. Along the way, director-producer Gabriela Cowperthwaite compiles shocking footage and emotional interviews to explore the creature’s extraordinary nature, the species’ cruel treatment in captivity, the lives and losses of the trainers and the pressures brought to bear by the mulit-billion dollar sea-park industry.

Since the films release Blackfish has caused a worldwide backlash against marine parks, with many famous celebrities speaking out, protests outside venues where whales are held in captivity, and the film has even caused a change to Pixar's upcoming Finding Nemo sequel. Find out why the film has caused such a storm and watch Blackfish with us on the 21st....

We will be tweeting along to the films TV premiere, and engaging in the debate using the hashtag #Blackfish. Share your thoughts with us during the showing by including @Dogwoof in your tweets for a chance to win Blackfish prizes, including T-shirts, posters, DVD and Blu-ray copies of the film!

You can order your own copy of Blackfish Blu-ray or DVD now from Amazon or the Dogwoof DVD shop. The film can also be watched via iTunes or on Dogwoof.TV for members,  and for readers in the US, the film is also now out to own - order the DVD here or Blu-ray here.

For more information on the film, visit blackfishmovie.com, and follow the film on Facebook and Twitter