At 51:00 - Nadja Is walking past a long row of shipping containers on her way home. But as she enters her trailer the view out the window shows a storefront and traffic.
Although the scenes appear to have been intentionally edited in such a way that the person in the interior setting looks like a continuation of the person in the exterior setting, those are actually two different women. The woman who walks past the row of shipping containers and who walks up to her trailer, isn't Nadja; it is Perle, Elsie's mother. The scene then cuts to an interior setting showing Nadja entering her motel room, which is situated along a main highway. Notice that the windows of Perle's trailer and the window of Nadja's motel room are also significantly different: they are simply different settings.
Although the scenes appear to have been intentionally edited in such a way that the person in the interior setting looks like a continuation of the person in the exterior setting, those are actually two different women. The woman who walks past the row of shipping containers and who walks up to her trailer, isn't Nadja; it is Perle, Elsie's mother. The scene then cuts to an interior setting showing Nadja entering her motel room, which is situated along a main highway. Notice that the windows of Perle's trailer and the window of Nadja's motel room are also significantly different: they are simply different settings.