Time is unstoppable. It’s just one of those annoying facts of existence; one day your young, bouncy and beautiful; the next your bones are aching, you’re listless and ugly as sin. Worst than experiencing your own ageing process is viewing how celebrities withstand the test of time. Accustomed to seeing them on the screen, they seem timeless and perfect to us. We never notice their growing wrinkles, the extra weight and the sluggish movements until they’ve metamorphosed into wholly different individuals devoid of all glamour and beauty. Unfortunately, celluloid is only an illusion, and the stars are flesh and bone mortals, like you and me. Here are 20 celebrities that have changed dramatically through time.