At around 48:06, when the main character is videotaping herself, she points a gun directly at the camera from a distance of probably less than a foot. This has the unintended consequence of revealing that the pistol is an Airsoft replica of an M1911 .45 ACP with a much-smaller inner muzzle than that of the real firearm.
The movie is takes place in San Francisco. At around 30:45, after Frank leaves the hotel, is a scene with Frank crossing a road toward a Chinese restaurant. In real life, the restaurant is Kent's Kitchen at 232 Keefer St. in Vancouver. The phone number for Kent's is clearly visible on the sign, "Tel: 604-669-2237" as well as the Keefer St. address. 604 is the area code of Vancouver, not San Francisco.