The consultancy, selected for a second consecutive year, will deliver a multi-layered campaign with strategies for each of the festival’s key strands.
The event runs across a number of venues across London between 12-21 January. It will show over 500 short films across the music, culture and politics genres and aims to promote diverse and inclusive film.
Fiona McGarva, managing director of Sundae Communications, said: “We are delighted to be working with the LSFF for a second year at such a landmark moment in the development of the festival.
“We love the creative, inclusive and trail-blazing ethos of LSFF, and are incredibly excited to be developing the profile for such an important event in the film calendar.”
Sarah Chorley, festival director for LSFF 2018, added: “Fiona and the team at Sundae got to grips with the huge LSFF programme in 2017 admirably in a very short space of time – with 80+ events over ten days, it was a real relief to have them on our side working their PR magic, and ultimately delivering more than 17m views across local and national media.
“We’re delighted to be working with them again on our 15th anniversary programme and we’re already seeing brilliant results.”