Ledger's performance has created a wave of excitement and praise from his co-stars, including Aaron Eckhart, who plays Harvey Dent and is involved in a tense, pivotal scene with the deranged Joker.

BBC: Batman's nemesis crowns dark tale

Relying on outsiders for more than a fifth of your sales represents a fairly big dent in many companies' definition of what they are: it erodes corporate boundaries and forces imperious types to co-operate with one another.

ECONOMIST: Mergers and alliances

The recent proposal by the co-chairs of President Obama's bipartisan deficit commission would, unfortunately, make only a modest dent in our nation's humongous credit card bill.

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