If not, download it here.
See the model lifecycle in Google Maps





The 300 gadget gives you a quick access to 300 showtimes around the nation. Embed the 300 gadget on your website, your personalized homepage or right on your desktop.
Homepage gadget

Available at http://google.com/ig, your Google Personalized Homepage provides at-a-glance access to information such as Gmail, customized news headlines, local weather, stock updates, hand-picked RSS feeds and more.

Click here to add the 300 gadget to your homepage.
Website gadget

Copy-and-paste the HTML below into your page's source code. Then, reload to see the 300 gadget on your page.



Advanced users: Click here to customize the gadget's appearance.
Google Desktop gadget

1. Download Google Desktop.

2. Once installed, open the Google Desktop Sidebar and click the "Add+" button at the top

3. Copy the following address:

http://php.warnerbros.com/movies/300/googleearth/gadget/300.xml

4. Paste the address into the top-right field and click "Search Gadgets"

5. Click the "Add" button. The 300 gadget is now installed!