The troubled actor will be in the slammer for four months following a Christmas Day incident.
The Tonight Show host took a trip to Bayside High to hang out with Zack and the rest of the gang.
The movie got some details right, even when others were obviously wrong.
Screech takes over for Zach to do his best Kevin Spacey impression.
The new clip even features a cameo from the legendary Zack Morris phone.
If you thought Lindsay Lohan as Liz Taylor was the worst the network could do, you were sorely mistaken.
Plus: Beyonce in concert on HBO, Zachary Quinto on Girls, and two Buffy alums move to Witches of East End.
Plus: The skinny on Vanessa Williams' Desperate Housewives role, Entourage is hoping for a presidential cameo, and the return of Zack Morris.