Based on the aggregated intelligence of 170,000-plus investors participating in Motley Fool CAPS, the Fool's free investing community, 3-D movie technologies company RealD (NYSE: RLD) has received the dreaded one-star ranking.

With that in mind, let's take a closer look at RealD's business and see what CAPS investors are saying about the stock right now.

RealD facts

Headquarters (founded) Beverly Hills, Calif. (2003)
Market Cap $1.3 billion
Industry Movie production
Trailing-12-Month Revenue $215.44 million
Management

Co-founder/CEO Michael Lewis

COO Andrew Skarupa
Operating Margin (average, past 3 years) (24.4%)
Cash/Debt $54.25 million / $3.88 million
Competitors

Dolby Labs (NYSE: DLB)

IMAX (Nasdaq: IMAX)

NVIDIA (Nasdaq: NVDA)

Sources: Capital IQ (a division of Standard & Poor's) and Motley Fool CAPS.

On CAPS, 43% of the 67 members who have rated RealD believe the stock will underperform the S&P 500 going forward. These bears include don1941t and All-Star bigcat1969, who is ranked in the top 5% of our community.

Just two weeks ago, don1941t tapped RealD as a rather low-grade selection: "I've been to both IMAX-3d and RealD showings. No comparison between the image quality. As economy improves I expect people to go for the best experience."

While RealD is certainly making a name for itself in consumer electronics, our community can't seem to get over its inferior position in theater, negative margins, and seemingly steep valuation. Currently, RealD even trades at a clear forward P/E (39.4) premium to listed rivals Dolby (21.3), IMAX (24.2), and NVIDIA (27.9), as well as traditional movie chains like Regal Entertainment (NYSE: RGC) (17.1) and Cinemark (NYSE: CNK) (12.2).

CAPS All-Star bigcat1969 elaborates on the bear case:

3D, smell-o-vision, pick your own ending, electrically shock the patron and other ideas have come and gone as fads. Only things that added to everyone's experience such as sound, surround sound, color and clearer picture have stayed and thrived. This version of 3D can't be used by everyone and may leave many of those who can use the tech with problems if they use it for extended periods of time. Hardly a broad based solution.

What do you think about RealD, or any other stock for that matter? If you want to retire rich, you need to protect your portfolio from any undue risk. Staying away from dangerous stocks is crucial to securing your financial future, and on Motley Fool CAPS, thousands of investors are working every day to flag them. CAPS is 100% free, so get started!