Subscribe to the Internet Movie Database Pro (see References section). This resource is available for a monthly sum of $12.95 and provides directory listings of who represents the film and television stars you want to find. A 14-day free trial allows you take the system for a test drive and see how it works.
Bookmark "Filmbug" (see References section). This website features biographies and filmographies of more than 10,000 Hollywood celebrities. If you're trying to interest an actor in one of your screenplays, it helps to demonstrate that you've done your homework and are familiar with his or her body of work and special interests.
Purchase a copy of the "Hollywood Creative Directory," available from the website provided in the References section or from Amazon.com. This in-depth resource contains contact information for film companies, television shows and studio executives. Sometimes an effective way to reach a star is through someone who has already worked with him or her.
Increase the odds of a star-sighting opportunity by bookmarking "Seeing Stars in Hollywood." This free website (see Resources section) provides the inside scoop on where stars like to shop, where they like to eat and where they're going to be doing a film shoot.
Take out a subscription to "Who Represents" (see Resources section). For a monthly fee of $12.99, you can troll this publication's extensive database and determine the agent or agency that currently manages the star's career.