yt source viaOriginal Video from Boston Globe at the end of this post.BostonGlobe LOS ANGELES — The pert blonde in the headset peeks into the airless basement conference room. “Rob will be here in five minutes,’’ she says, flashing a smile.The Rob to whom she refers is Robert Pattinson, the 24-year-old British actor whose penetrating gaze and masterfully moussed hair have helped propel t…