The action takes place around the second half of June (either side of the Glastonbury festival weekend). At the beginning of the film leaving work early evening in time to get home for dinner, in the UK, it wouldn't be dark. Later on, there isn't that much snow in the Alps, especially below the tree line, at that time of year.
Poppy has two robotic dogs called Bennie and Jet, this is after a song by Elton John - Bennie and the Jetts. Elton John is also in the film.