Continuity mistake: The car Carl Fox is driving is on a 3 lane road with concrete barriers, that does not allow for parking. When the camera angle changes to show the interior, the car is on a road with vehicles parked on the sides. (01:53:20)
Continuity mistake: When Gekko says that Ollie is the best trader on the street, Bud turns his head to his right, but when the camera angle changes in the next frame Bud's head is turned to his left. (00:16:00)
Continuity mistake: In the club changing rooms Gekko fiddles with the knot of his tie but does not neatly fold his shirt collar, which exposes the tie at the back. When he puts on his jacket the collar and tie now appear properly dressed. (00:28:00)
Answer: It's probably just a movie inaccuracy. For whatever reason, probably technical, economical, or for artistic considerations, the scene could have been staged and shot during sunset rather than sunrise. Oftentimes, scenes are not actually filmed when and where they are supposedly set. Locations are often substituted for ones that are more private, more scenic, have easier physical access, are in a less expensive economic region (such as Canada), and so on.
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