FREE $3 Amazon Instant Video Credit April 27, 2012 This post may contain a link to an affiliate. See my disclosure policy for more information. Currently, Amazon is offering up a FREE $3 Amazon Instant Video credit when you send a tweet. You’ll need to connect your Twitter account, and after you tweet, you’ll get the $3 credit immediately. This should make for a FREE movie or two since many movies are priced below $5!