It is. And at LAX airport no less.
And, as opposed to some people who rock up at events wearing tissue-thin fabric and no bra and then post all manner of "OMG how embarrassing, I totally didn't realise my borderline-see-through-under-normal-lighting-conditions dress would get EVEN MORE SHEER under flashlights" business on Twitter, we firmly believe that Salma's fashion slip was unintentional.
Sidenote: How adorable is Salma's daughter Valentina, turning the tables on the paps and snapping away at them herself?
Second sidenote: Why is she being interviewed by the lovechild of Jon Gosselin and Jonathan Phang?