The three early 777-200's (ZZA, ZZB and ZZC) are not IGW (Increased gross Weight) models and are the remaining three aircraft from B.A's original order, ZZD and ZZE were chopped in to Boeing for later model 777's. Yep, they have small screens, and a limited range, as when they were ordered they were specifically for high revenue routes (East coast and Middle East) with 70 (yes 70) club seats... I have had many happy rides on these aircraft to / from DXB / AUH/ BAH - You may be in luck, perhaps B.A. will substitute the a/c between now and your flight!!