Answer
The iconic line "Alright, Mr. DeMille, I'm ready for my close-up" is uttered in the 1950 classic film noir "Sunset Boulevard," directed by Billy Wilder. The line is delivered by the aging silent film star Norma Desmond, played by Gloria Swanson, as she makes a grand entrance down a staircase, epitomizing her longing for a return to the spotlight and her refusal to accept the fading of her stardom.