By Mike Snider, USA TODAY

The total amount of screen time amounts to little more than a teaser, but those few seconds may have turned the Indiana Jones sequel from a question mark into a must-see when it opens May 22.

Since the trailer's debut online less than four weeks ago, millions of fans have clicked through to watch the promo for Indiana Jones and the Kingdom of the Crystal Skull.

A recent survey of moviegoers by the Motion Picture Association of America found that 73% looked for information about films online and that more than half of respondents (54%) saw ads or trailers online.

"The Internet plays a significant part in spreading the word (positive and negative) about how the trailers are," says Parlevliet, whose site has hosted trailers since 1998.

The Internet provides "a forum for people to have discussions far beyond the theater and classroom," Paramount's Gerry Rich says. "Nothing replaces a captive audience sitting in a movie theater reacting to the trailers put in front of them."

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