More than 40 films to screen include Shadows In The Sun, Abrahams Point, Hush Your Mouth, Love Me Still and Jack Says.
The Breakthrough strand returns for a third year to introduce projects from UK film-makers who don't have sales agents yet. Selections for that section include Lesley Manning's The Agent, Jim Doyle's Charles Noades RIP, and Alexander Snelling's documentary Tantric Tourists.
Helena Mackenzie, head of international at Film London, said: 'LUFF has become a key event at which to promote British talent to the international market, providing an important showcasing opportunity for British films. It's also satisfying to see the Breakthrough strand going from strength to strength.'