Mark Ruffalo tells Cameron his UK fracking push is an 'enormous mistake'

Actor records video message to the UK prime minister accusing him of going back on his word by failing to respect public opposition to fracking

David Cameron is making an enormous "legacy mistake" by going all-out for fracking in the UK, the actor and environmental activist Mark Ruffalo has warned.

The actor, who is famous for his role as the Hulk in the Avenger films and who stars in Spotlight about the Boston Globe's investigation into Catholic child abuse, is a prominent anti-fracking campaigner who lobbied successfully for a ban on the controversial technology in New York.