Father and Son(2003)

In this dreamlike film, a nameless father and his son, Aleksei, live together in an apartment in St. Petersburg. Aleksei's mother has died and consequently the two have a very close relationship. When Aleksei acquires a girlfriend, she refuses to take a back seat to his bond with his dad, and breaks up with him. Aleksei is also experiencing nightmares, dreading separation from his father to be a part of the military as his father was.

Official site