Immediately after the confrontation between Harry/McGonagall and Snape in the Great Hall, Harry runs up to Ravenclaw tower against crowds of students running the opposite direction. However, all the students would have been in the Great Hall during that confrontation, and therefore would have been coming from the same direction as Harry. See more...
Popular blog posts:
Other great sites
Harry Potter and the Deathly Hallows: Part 2 (2011) - 1 trivia entry
Directed by David Yates, starring Alan Rickman, Daniel Radcliffe, David Thewlis, Emma Watson, Evanna Lynch, Helena Bonham Carter, Julie Walters, Maggie Smith, Michael Gambon, Ralph Fiennes, Rupert Grint, Tom Felton (add more)