Former U.S. Vice President Al Gore and the producers of Oscar-winning environmental film An Inconvenient Truth are plotting a sequel to the 2006 documentary.

The movie, which raised awareness of climate change, made $50 million (£31.2 million) at the global box office, and producer Lawrence Bender tells The Hollywood Reporter there are plans to revisit the project, which featured Gore as a narrator.

He says, "We have had conversations. We've met; we've discussed."

Bender insists there is a pressing need to spread the message that climate change is still a very real problem, adding, "Some people actually believe global warming doesn't exist."