The song the nursing home staff sings while bringing Allan his cake is a traditional Swedish birthday song, "Ja må du leva," the lyrics of which translate in English to "May you live, may you live, may you live one hundred years! Of course you'll live, of course you'll live, of course you'll live one hundred years!" (Not included is the cheeky final verse, which states "And after you've lived one hundred years, you'll be taken away in a wheelbarrow.")
The lead actor Robert Gustafsson estimated that he had spent a full three weeks non-stop in makeup after principal photography had wrapped. Some days, makeup had to start applying prosthetics at 2 a.m.
The shot in Bali is done in Thailand. Although it shows the cars using Bali's license plate, in the closing credit where they list each crew team for each location like "Sweden team" and "Croatia team", there isn't "Bali team", but instead "Thailand team".