They began their love affair on set, but Natalie Portman and her French choreographer beau, Benjamin Millepied, didn?t cause any drama while filming Black Swan last year. ?They were unbelievable together. I did notice how good of a dancing couple they were. They were just magic,? Darren Aronofsky, who directed the dark film set in the ballet world, told In Touch at IFP?s 20th Anniversary Gotham Independent Film Awards in New York. In addition to bagging what her director calls a ?beautiful, talented? boyfriend, Natalie also bonded with co-star Mila Kunis. ?They hung out and talked about all the food they wished they could be eating!? Darren laughed about the pals, who both lost weight for their roles as rival ballerinas.