- Connect your Amazon.com and Twitter accounts. (If you are not already signed in, you will be prompted to do so).
- Automatically follow @amazonvideo and @americanexpress. The message "I just got a $6 credit for a free #TribecaFest movie rental at @amazonvideo from @AmericanExpress. Get yours http://amzn.to/gEaPlC" will be automatically tweeted from your Twitter account.
After completing these steps successfully, browse for a movie rental at the Amazon Instant Video Tribeca Film Festival store, select a title, and then click the "Rent" button.