Here’s a list of books and movies that have been alluded to in WINGS and You Never Walk Alone so far.
Demian: The Story of Emil Sinclair’s Youth (1919, Herman Hesse) Inspiration for the short films, MV and concept during WINGS era.
The Ones Who Walk Away from Omelas (1973, Ursula Le Guin) Inspiration for Spring Day.
The Owl Service (1967, Alan Garner) Subtle references for the concept photos for You Never Walk Alone and Short Film #2 LIE
The Chatroom (2010) Alluded to in Blood Sweat & Tears and the WINGS Tour Trailer
No Vacancy (2012) Alluded to in Spring Day
Snowpiercer (2013) Some of the lyrics and scenes from the MV are inspired by Snowpiercer. It’s about the remainder of humanity surviving on a train as there is a new ice age (caused by global warming).