With recently marking its 21st anniversary, Joseph Gordon-Levitt is just as stunned as the rest of us when it comes to how much time has passed since the '90s film charmed audiences around the globe. “You're kidding!’ he said to ET’s Lauren Zima, reacting to how more than two decades has passed since the film’s release.“David Krumholtz [and I] — we're always in touch,” he added, about whether the gang could join the quarantine trend of reuniting with each other virtually to celebrate their hit film. “One day he was like, ‘Aye Joe, will you come on my Instagram live?’ I was like, ‘Alright dude, sure.’ So, we had a conversation for a while.”Gordon-Levitt, 39, also remains in touch with Larisa Oleynik (who played Bianca) from the film, which