This undated photo released by Paramount Pictures shows Harrison Ford as Indiana Jones, co-starring with Shia LaBeouf in Indiana

Los Angeles ? Times sure have changed in the 19 years since Harrison Ford last donned the signature fedora of thrill-seeking archaeologist Indiana Jones. The viral spread of the trailer for “Indiana Jones and the Kingdom of the Crystal Skull” is proof of that.

The trailer for the May 22 release has drawn highly enthusiastic responses in theaters. But it may have had its biggest impact online, on a younger audience that may not think of Ford, 65, as equal to today’s spry action heroes.

After premiering Feb. 14 on “Good Morning America,” Lucasfilm and Paramount Pictures sent the trailer to the Web, plus movie theaters and TV stations around the world. Paramount estimates the trailer was seen more than 200 million times worldwide in the first week alone.

Harry Knowles, who runs the movie fan site AintItCool.com, says he first saw a bootleg version of the trailer online, then the official version online, and then saw it twice in theaters.

There were cheers in the theater when the familiar theme song kicked in, Knowles said, and comments on his Web site have been positive. “People generally really, really loved the trailer,” he said. “Some people think it’s a little more cartoonish-looking compared to the prior (films), with him whipping the lights and swinging on them and stuff. But at the same time, it seems that everyone is extremely excited that there’s a new ‘Indiana Jones’ film.”

“The trailer caught on like wildfire, around the world, in all mediums,” said Gerry Rich, Paramount’s president of worldwide marketing, who’s targeting moviegoers “from 8 to 80.”

Older audiences certainly remember Indy, but that’s not the prime ticket-buying demographic. Thus the aggressive online campaign, which included what Paramount says is a record 4.1 million views on the Yahoo movie site in the first week and 2.6 million on the official IndianaJones.com site, the most ever for the studio.