Continuity mistake: When the man is telling Ben about the club whilst on the dental chair, the bib he has on keeps changing, depending on the angle. Watch the red item in his chest pocket.
Continuity mistake: "The Spokes Person": Ben says, "Mr. Feburary dosen't look too good." He then lifts that one page and it shows April on the calander. Not Feburary. This is not a character mistake, as he has passed Feb.
Answer: Easy. He could have got the guitar at any point in his life. As for keeping it in the attic? You're not going to throw out a £1000 guitar any time soon.
Ssiscool ★