What's in a Hollywood Baby Name?

Find out why Blake and Ryan kept "James" private and which former costar Vin Diesel is paying tribute to through his newborn daughter

ROSALIND ARUSHA ARKADINA ALTALUNE FLORENCE THURMAN-BUSSON

Try saying this one five times fast! Mom Uma Thurman was motivated by her 14-year-old daughter Maya to choose the tongue-twisting name for her newborn, her child with beau Arpad Busson born on July 15, 2012. Her reasoning: "I probably wouldn't get to have any more children," she said on Late Night with Jimmy Fallon, "so I just put every name that I like [into her name]." But you can call her by her nickname, Luna.