The producers mascot, Laura Lake's dog (a white, female Cavapoochon) is credited as Luna - but she does not appear in the movie: only in the end credits group photo.
"Hunted" originated from Laura Lake offering to film fight/action showreels for her friends. She felt so inspired after the first day of filming fights that herself and Ewan Callaway developed a story line that worked around the original fights. Four additional fight days were added along with filming the story line- resulting in "Hunted"