At 0:21 You can just make out the catchlights in her eyes. The Key looks like it is at about 4 o'clock in the shot with fill from about 8 o'clock. They both look like large diffussion frames to me. Either use a large 8'x8' diffussion frame or if you are on a tighter budget use a large white muslin and used bounced light. You could also use a bunch of white chinese lanterns as a bank of these would effectively work as one large soft light. She also has a bit of rim lighting which is most likely coming from the out of focus practicals in the background. The shot lens looks like a 75mm to me - though this lens guessing business is difficult. If however, they did use a tele then the compression of space will make them look as though they are standing closer.
Also look out for glasses 0:17, they can give clues to lighting. Clearly this is one large softbox and the glass is picking up the fill from 9 o'clock here.