Take a cauldron. Mix in 'Harry Potter and The Goblet of Fire' in generous doses, the essence of 'Jaane Tu Ya Jaane Na', few minutes of some other films set in schools, and add a dash of '3 Idiots' for flavour. What you have is Karan Johar's latest offering, 'Student Of The Year'. The director's latest offering justifies, to the last bit, the adage - 'all that glitters is not gold'.