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"Avatar" is already the year's top-selling home entertainment title after just four days in release.

Consumers snapped up 6.7 million copies of the first "Avatar" DVDs and Blu-ray Discs, which are 2D versions of the action fantasy offering no bonus features. "Avatar" sales quickly have outpaced the 6.5 million units sold of Summit/Universal's "The Twilight Saga: New Moon," which had been 2010's hottest disc release to date.

What's the downside to digital special effects and 3D movies overtaking theaters? One, at least, is that fans may lose sight of actors like Anthony Hopkins.

At 72 years-old, the Oscar winner says offers of work have slowed in recent years, and he finds roles in movies such as his current "The City of Your Final Destination," to be most enjoyable because films like it "are very quiet and internal."

That is not to say that Sir Anthony doesn't care to work with big action and special effects. He performed in recent horror tale "The Wolfman" and in computer animated "Beowulf."