BestBuy is including a free Movies Anywhere digital code with pre-order of How to Train Your Dragon.
This is separate from the digital code insert that is included with the retail copy, so you can sell the retail copy insert or give to family/friends.
I pre-ordered in March before there was the "free" item included, so I'm working with them to get the code.
4K Blu-Ray [bestbuy.com]
4K SteelBook [bestbuy.com]