The law which gave people in England and Wales more access to the countryside - commonly known as the right to roam - caused many arguments when it was introduced ten years ago. Now the maps showing where people can and can't go are to be reviewed. The idea is to give walkers, farmers and other landowners the chance to change any mistakes. Charlotte Smith visits a Warwickshire farm to find out what impact the right to roam is having on farmers' livelihoods. Charlotte also talks to ramblers about whether they think they have enough access to the countryside.