In the beginning, when Joey and Phoebe are reading from a script for Joey's audition, looking closely at the script (especially on the Blu Ray version), one can read INT. JOEY'S APARTMENT, which means they are reading the actual script for this episode.
Rachel's hair is noticeably longer than it was in the previous episode: Jennifer Aniston clearly has hair extensions in due to the fact that she was shooting Rock Star (2001) at this time, a movie based in the 1980s, which required her to have long hair.
The Magna Doodle starts out with a Martian face.
Product placement: Beck's Beer on top of the refrigerator.