Question: After someone gets his memory erased, Lacuna sends a note to the related to ask them to no longer talk about the erased thing. Why does Lacuna intentionally not inform Joel that he had been erased from Clem's memory? (Joel's father ends up giving him his note and Dr Mierzwiak says he shouldn't have seen it). This won't prevent him getting hurt. After Clem erased him from her memory, he could have talked to her about their relation.
Question: What is the the song that is played around the last half of the trailer?
Question: It was mentioned several times throughout the movie that Lacuna Inc gets really busy on Valentines, and also at Joel's place when the tech guy tells Patrick to stop fooling around as they have to get moving to other jobs... So what happened to all the other clients since the remainder of the night was spent at Joel's place?