Reilly has second billing in British Independent film (Allies – 2014) by Happy Hour Films – a Bristol-based production company and distributed in the UK and the US (Feb 2015) By EOne, and a supporting role in Working Title's studio film Everest (2015), as Klev Schoening, alongside Jake Gyllenhall and Kiera Knightley in the true story of the 1996 disaster (Klev was the nephew of mountaineer Pete Schoening), and the third film in the Hobbit series (The Battle of the Five Armies – 2014) as "Dwarf Lieutenant".