Character mistake: Amber was a poster artist and Ben was a musician. Amber said to Serena, "You know a lot of people and can afford rent, so why do you want to live downtown?" The downtown area or center of a city is especially attractive to artists (as Amber should know) for its art/cultural/entertainment opportunities and experiences. Amber was also implying that it was more expensive to live in the suburbs than in a downtown apartment (where rent can be unaffordable to all but at least the upper-middle class). (00:07:20)
Plot hole: Even though Serena gave Amber reasons/excuses as to why she could not provide her with pre-rental approval information (current address, why she was moving, recommendation from a previous landlord, reference from a friend), Amber allowed Serena to lease the loft after she showed her a wad of money to pay for nine months' rent in advance. Even a first-time landlord would not lease a room without conducting an adequate background check and would be leery enough to seek a better-qualified tenant. (00:06:17 - 00:06:50)
Continuity mistake: Numerous times throughout the movie (within and between scenes), the length of Amber's bangs varies - from above, to touching, and into her eyebrows. The length even changed, at times, from the beginning to end of a short telephone call.
