In interview with The Hollywood Reporter, Robin Tunney described Nicolas Cage as one of greatest actors ever, saying she never enjoyed working with someone as much as him.
Interior of motel filmed in the old E'ola international airplane hangar in St. George, Utah.
Filmed at Aiken's Lodge in Kanab, UT
The film seems to be an exaggerated Hollywood version of the true-life story of Gerald Foos told in the documentary Voyeur (2017) in which he owned a Colorado motel and secretly watched his guests using specifically designed ceiling vents.
Looking Glass (2018) was originally going to be music video director Dori Oskowitz's feature length debut back in 2016.