At last month's Irish premiere and accompanying junket, actors Evanna Lynch and Matthew Lewis spoke about how their roles in Half-Blood Prince became more peripheral, which allowed them to watch much more of the filming than before. Evanna also admitted that there will be a train sequence filmed for Deathly Hallows Part I which will show the Hogwarts students (sans Harry, Ron, and Hermione) heading to their very-altered school. The videos can be seen below:





Source: Lewis Lovers