And with this black beauty it's never a nip slip, it always goes al the way out, so it's a definite boob slip here... So there she is on the set with her boobs out, in thorn fishnets (is she masking a porno?!) of some movie called Frankie and Alice, which looks pretty shitty already, but if they keep the slip unedited it will be worth watching...
See also:
Halle Berry Photo Gallery
Halle Berry Looks Pregnant Again
Halle Bery Is The Sexiest Woman Alive