Incredibly Small (2010)

“Two recent college graduates, Anne, an ambitious law student and Amir, an aimless escalator attendant and aspiring sculptor move into a 300 square foot apartment and try to start a life together. But the combination of their small apartment, their threateningly handsome neighbor across the hall and unexpected visitors from the past make them realize that maybe they aren’t as perfect for each other as they previously had thought.” -imdb.com