54 years old (Born on July 30, 1970)
Happy Birthday, Christopher Nolan! Here's hoping your birthday celebrations aren't as complicated as "Memento"—no tattoos required to remember the cake this year. Your genius in storytelling has given us complex plots and thought-provoking characters; seriously, we're still debating if Leonardo spun that top or not!From creating Gotham's unforgettable heroics in "The Dark Knight," complete with Heath Ledger’s iconic Joker laugh (still echoes hauntingly awesome), to bending our brains backwards through space-time dilemmas ("Interstellar," anyone?), you've certainly earned celebratory fanfare. May your day be epic yet coherent—a Nolan-worthy masterpiece enjoyed forwards...and maybe even backwards for good measure!