Petra Nemcova attended the premier of The Black Dahlia New York last week, but she didn't have James Blunt by her side!
It seems her relationship with singer James Blunt wasn't that great, so now she's with a new guy ... & what a guy he is!
Nemcova was on the arm of Nathaniel Rothschild, a famous British aristocrat worth millions!
Blunt is also worth millions, but not like Rothschild!
35-year-old Rothschild is the heir to a £500-million banking fortune.