Films4Food is a genius initiative from the big-hearted folks at the Rainbow Collective. It's a simple idea. You bring food to one of the designated London cinemas and in return you get to watch the film for free. Since they started, over 525 kilos of food has been donated, making more than 1050 meals for the Tower Hamlets Food Bank.

For details and to check what sort of food items are suitable to bring, have a peep at their website The Rainbow Collective or Twitter @films4food