IDK if this is on Amazon yet, but I came across this on someone's dvd/blu-ray review that had the specs for the extras. Here's what the reviewer said:Also on the Blu-Ray are:
ZAC GOES BACK (12:32) - Making of featurette.
GOING BACK TO 17 (3:13) - The cast reminisces about what it was like to be 17.
BREAKIN’ CHARACTER OUTTAKES (3:24) - Behind the scenes footage of outtakes from the film.
ZAC’S DANCE FLASHBACK (2:10) - Talking about a deleted dance sequence.
ADDITIONAL SCENES (16:05) - Thirteen deleted scenes. One, between Tom Lennon and Melora Hardin, should have remained as it explained a rather dramatic shift in character.
While I was unable to check them out on my system, there are several extras using the BD-LIVE technology. These are:
Commentary by Zac Efron.
TOM LENNON AND MELORA HARDIN - UNFILTERED: TWO COMEDIC IMPROV MASTERS COME TOGETHER.
ZAC ATTACKS: MIKE AND NED’s HILARIOUS BATTLE WITH MEDIEVAL SCIENCE-FICTION WEAPONSsource