Just in time for the Halloween weekend, Paramount Pictures launched the full version of its official Web site for Tim Burton’s “Sleepy Hollow,” which includes content from partners Yahoo!, Apple Computer Inc., “Entertainment Tonight,” Interactive Pictures’ IPIX, Egreetings and e-tailer Artistdirect, among others.

Being heralded as the “most ambitious online launch” of a motion picture to date, the site at least is Par’s most feature-filled online effort.

The site (sleepyhollowmovie.com) offers visitors live video chats with several of the filmmakers hosted by Yahoo! and enables them to send postcards, view photos, trailers and a six-minute behind-the-scenes featurette edited from a broadcast that aired Oct. 28 on “Entertainment Tonight.”

IPIX also offers extensive tours of 10 sets, where visitors can virtually roam around photographs, including the sets for the entire town of Sleepy Hollow, forest, church, graveyard and covered bridge.

Artistdirect is offering 30-second snippets from 10 tracks on the pic’s score by Danny Elfman, available to purchase directly from the site’s store.

Arthur Cohen, prexy of worldwide marketing at Par, said the “Web-friendly” nature of the pic encouraged the studio to create the site.

“The Web is growing so fast that the amount of attention you pay to it is different now from how it was just a year ago,” Cohen said. “It’s gotten so much more sophisticated in terms of its relationship with consumers and with Hollywood.”

The site has attracted nearly 10 million visits since launching a partial version in July.

Pic, which stars Johnny Depp and Christina Ricci and is produced by Scott Rudin and Adam Schroeder, is being released by Mandalay Pictures and Par Nov. 19.