Question: "Simple Song #3" is the lead single from a 2015 Italian comedy film set where? 

Related documents: [0]  [DOC] "Simple Song#3" or "Simple Song Number 3" is an original song sung by South Korean singer Sumi Jo. The song was released as the lead single from the soundtrack album of 2015 film "Youth" written and composed by American composer David Lang. [END] 
[1]  [DOC] Youth is a 2015 Italian comedy-drama film written and directed by Paolo Sorrentino. It is the director's second English language film, and stars Michael Caine and Harvey Keitel as best friends who reflect on their lives while holidaying in the Swiss Alps. It is a story of the eternal struggle between age and youth, the past and the future, life and death, commitment and betrayal. The cast also includes Rachel Weisz, Paul Dano, and Jane Fonda. [END]  
Answer: Swiss Alps
Swiss Alps