United Kingdom, March 17 -- Kat Dennings knew her real name "wasn't going to work" for her acting career when she was just nine years old.

The 38-year-old actress - who made her official onscreen debut in a 2000 episode of 'Sex in the City' having previously featured in commercials - was born Katherine Litwack but quickly chose a stage name for herself as she felt her real surname couldn't "be displayed" on promotional posters.

Speaking on the 'Not Gonna Lie With Kylie Kelce' podcast, Kat said: "I chose it when I was nine. Because my real last name is Litwack. That's all you need to hear.

"And at nine, I was like, 'This isn't going to work for me. This is not going to work. I can't see that name. She, slash I, was very ahead of her tim...