See, the movie's Press Releases and Spinmeisters in Gollywood have been claiming that Portman (who won a prestigious award based upon these claims) did 85-90% of the dancing seen in the film.
The "truth", it turns out, is that she did about 5% of it, and the Gollywood Spinmeisters and her Press People have been lieing. I know the issue at the core is rather banal and inconsequential, but the truth is that Gnat did very little of the hoofing on stage.
For those who care about the truth, this is meaningful. For those who don't, they have my deep pity.
;-\