Friends of the Earth is teaming up with the Prince Charles Cinema for a series of special showings of An Inconvenient Truth.
Each screening will give you the chance to quiz a leading politician on climate change.
The first screening is on Monday 26th Feb at the
Prince Charles Cinema, just off Leicester Square, London. Other screenings will include David Cameron and Ming Campbell.
Environment Secretary David Miliband and Friends of the Earth Director Tony Juniper will be there to take your questions.
We've got 5 pairs of tickets to give away. If you fancy coming - tell us what
you'd like to ask David Miliband in a post below.
We'll let you know if you've won by email on Monday morning.
PS. If you can't make it but still want to enter - just add "can't make it" to your message. If you win - we'll have rummage in our goodie box and send you something by snail mail.