Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of 3-D projection technologist RealD (NYSE: RLD) are out of focus today after falling as much as 10.1% on very timid trading volume.

So what: RealD jumped sky-high on Monday as legendary director Martin Scorsese pounded the table on the virtues of three-dimensional storytelling. Today, the same man vowed to stay away from remaking any of his old films in the new format. Scorsese's strong support is yesterday's news and investors are going back to the same old fundamentals; Monday's gains have all but disappeared.

Now what: So we're not getting Raging Bull and Goodfellas in 3-D, but Scorsese still insists that he would have gone there if the technology had been mature the first time around. "Depth is part of how we perceive reality, so why not use it as a narrative element, like color," he told British news outlet Sky News. At the same time, he told the BBC that special effects-powered "theme park movies" are undermining the art of cinema. "We have to react against the theme park film, as well made as they are, and as enjoyable as some of them are."

RealD and IMAX (Nasdaq: IMAX) investors would relish a wider market, but they also revel in larger-than-life visuals like the ones Scorsese wants to overthrow. Six of one, half-dozen of the other -- I suppose it's just about fair to have shares back where they were last Friday.

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