Tokyo Godfathers (2003)
Christmas in Tokyo, Japan. Three homeless friends: a young girl, a transvestite, and a middle-aged bum. While foraging through some trash, they find an abandoned newborn. Hana, the transvestite with delusions of being a mother, convinces the others to keep it overnight. The next day, using a key found with the baby, they start tracking down the parents, with many adventures along the way.