During Erica's intervention, Mr. Glascott suggests that Johnny Atkins might be an older man who is posing as a high-school student because he is a narc. This is reference to the age difference between 22-year-old actor Hayley Orrantia (Erica), who can pass for a high-school student; and 27-year-old actor Sean Marquette (Johnny Atkins), who really cannot.
Mr Glascott suggests Johnny might be an adult cop posing as a student. This is reference to 21 Jump Street, a TV series, and later movie, where young looking officers are sent back to school to gather info. It originally aired in 1987, and the movie was released in 2012, going by the same title.
Adam's Revenge Of The Jedi poster would be worth approximately £13.000 now (2021).