Belle and Sebastian: The Adventure Continues (2015)

What it's about

September, 1945. Sebastian impatiently waits for the return of his friend Angelina, whom he has not seen for two years. When the plane carrying the young woman to her small village in the Alps is reported to have crashed in the mountains, Sebastian is convinced that Angelina is still alive. Along with his faithful dog Belle, Sebastian embarks on the most dangerous adventure of his life.