The competition is calling for short films about the environment, which will be showcased , where the public can vote for their favourite.
The top 25 films will then make up the shortlist, and will be judged by a panel of leading industry figures including: David Sproxton, creator of Morph, Eco-Morph and co-founder of Aardman Animation; Lord Puttnam, the Oscar-winning producer; and Andrew Macdonald, producer of 'Trainspotting'.
Tony Juniper, executive director of Friends of the Earth, said: "One-minute green films are a fantastic way to channel some of UK's creative talent into communicating environmental issues. We hope these films will inspire others to get involved and help to protect this beautiful planet that we all live on."
All of the green films will be forwarded to Filminute, the international one-minute film festival, and the winning film will win Avid editing software and free post-production.
Entries must be submitted by midnight on August 20 2007 on the Friends of the Earth .
Sproxton said: "Getting a message across succinctly and swiftly is crucial in these fast-moving times. Being clear and simple is the way to go especially with important ideas like helping humanity preserve living conditions across the planet. Be original and be imaginative."
Morph first found fame in the BBC art series presented by Tony Hart, shown from 1977. He went on to appear with Hart throughout the 80s and into the early 90s. The plasticine stop-motion character was created for the corporation by Aardman Animations.
Morph lived in the Hart's wooden pencil box and was later joined by a cream-coloured friend called Chas, who was known for his bad behaviour.