When Frank, Jack and Susie get underway for the trip to the New Year's event at the resort hotel (a.k.a. Bill Gate's house), they are first shown driving southbound on the Mercer Street onramp to Interstate-5. Then the scene shifts to them driving near the Spokane Street exit southbound, five miles to the south. Then the scene shifts back to them driving emerging from a tunnel, which is actually the same southbound I-5 onramp, only a little farther past the initial shot.
When the little girl comes in through the window and tells Susie she "came down to walk Eddie", she goes out the door without the dog leash. The leash is clearly visible hanging on a peg right next to the door.
After Jack leaves the restaurant in the early morning, Jack returns home and tries to console Nina on the roof of their apartment. The sun, however, is not rising early in the morning, it is setting, since the view is looking to the north along First Avenue and the setting sun is to the west.