It is now possible to watch the movie Leave to Remain on BBCiPlayer:

http://www.bbc.co.uk/iplayer/episode/b05xxj3y/leave-to-remain

About the movie:

Based on real-life stories, Leave to Remain is a coming of age drama that depicts a world hidden from view. Omar, a charismatic Afghan teenager, is at the precarious juncture of having his refugee status decided, when the arrival of a boy from back home threatens to change everything. Forced into a position where the outcome may be the difference between life and death, his only options are to tell the unbelievable truth or to tell a good story? For Omar, and thousands like him, who arrive alone and scared to our shores each year, the asylum system is a cruel game of chance.