Only Lovers Left Alive

All of the cast members playing vampires wore wigs that were a mix of human, yak, and goat hair, in order to make them look wilder.

There is no way to get from the USA (Detroit or Chicago) to Spain (Madrid) only flying at night. The flight will take at least 8 hours and will cross 5 time-zones into the east towards sunrise. So night would take at least 13 hours.

The season is never explicitly given. Although there is no snow on the ground (as sometimes happens in winter), characters are shown in heavy coats and bracing against the cold. Three weeks before and after the winter solstice, the nights last for at least 13 hours, time enough for an 8 hour flight across 5 time zones.