"What's the best way to celebrate a movie anniversary with other fans?"
Rent out your entire neighborhood cinema, hire actors to recreate every scene live on stage simultaneously, then demand refunds because the real movie was better. Tatoo the release date on your forehead in binary code so strangers know your devotion instantly. Finally, challenge other fans to a interpretive dance-off in the town square at 3 AM; whoever moves the least wins eternal bragging rights and a participation trophy made of expired popcorn.