Amazon is running both a 2 for $30 sale and a 3 for 2 sale. These can be combined to give you 3 for $30, or $10 each.
Examples of qualifying items:
Abominable
Air Force One
Dunkirk
Darkest Hour
How to Train Your Dragon 2
Lone Survivor
Pitch Perfect
Pitch Perfect 2
Sicario
Warm Bodies
Wonder
BlacKkKlansman
Multiple groups of 3 are valid, though they may remove some additional mystery discounts.
Examples of qualifying items:
Abominable
Air Force One
Dunkirk
Darkest Hour
How to Train Your Dragon 2
Lone Survivor
Pitch Perfect
Pitch Perfect 2
Sicario
Warm Bodies
Wonder
BlacKkKlansman
Multiple groups of 3 are valid, though they may remove some additional mystery discounts.