Silent film wins seven awards; Jean Dujardin, Meryl Streep, Octavia Spencer and Christopher Plummer take acting honors
Best Film nods also go to "Drive," "The Help" and "The Descendants"
"Tinker, Tailor," "The Artist" and "Hugo" are top choices of BAFTA chapters; "The Tree of Life" is largely overlooked
Actor/writer/director becomes second recipient of Charlie Chaplin Britannia Award
British Academy's top honors are latest addition to 2011 awards calendar
Lone Scherfig drama leads with 17 mentions on lists from which voters will choose