Continuity mistake: When Branch hugs Cady, he places his right arm over her left shoulder, but in the following shot his arm is suddenly around her left arm/elbow.
Continuity mistake: When Mathias is dumping out the ashes, he is holding it with just his right hand and then grabs it with with his left hand (so both hands are on the bag). In the next shot, he's back to holding it with just the right hand and then grabs the bag with his left hand again.
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 ★