The King's Speech continues box office reign
The film took £4.26 million over the weekend, helping it claim the number one position for the third week in a row.
New release Black Swan, starring Natalie Portman, Mila Kunis and Vincent Cassel, opened at two, after taking £2.76 million.
The film focuses on a ballet dancer who wins the lead role in Swan Lake, only to find that she struggles to keep sane in the competitive dancing world.
Last week's number two, The Green Hornet, slipped one place to three, while The Dilemma, starring Vince Vaughn, Kevin James and Winona Ryder, was another new entry at four.
Gulliver's Travels and 127 hours claimed the fifth and sixth spots respectively, while Little Fockers slipped two places to seven.
New film Morning Glory, about a young television producer who is faced with the challenge of reviving a struggling morning show programme, opened at eight.
Harry Potter and The Deathly Hallows: Part 1 took the ninth spot, ahead of new entry NEDS.