ET?s celebrating major movie classic milestones! Starting with the casts of 'Troop Beverly Hills' decades later. And, spilling secrets you never knew! Plus, Kevin Costner takes us back to his ?Field of Dreams!? And, ET reunites Sean Astin with the real-life 'Rudy!' Then, 20 years since these rom coms! What ET just learned about a 'She's All That' sequel! 5 things you never knew about '10 Things I Hate About You!' And, a little kiss and tell from the cast of 'Cruel Intentions!' Entertainment Begins and Ends with ET!