Continuity mistake: When Walt and Vic are driving during the day, the sun changes constantly when the shot angle changes from each character.
Revealing mistake: Vic and Walt are walking toward the crime scene in the snow, while Vic is complaining about the job. In a high angle, you can see two tracks in the snow ahead of the actors where they practiced the scene before.
Answer: This appears to be movie fiction. In real life, a pharmacist could not legally give out confidential patient information without there being a search warrant. Not abiding by confidentiality laws could result in a pharmacist facing legal issues and losing his or her license.
raywest ★