Similar: The Croods
Bechdel Test: Fail
How To Train Your Dragon 2 is more proof that animated movies are not only for children. The main cast is in their late teens and have to deal with so much more.
The pacing for his movie is entirely different that the first movie; there is very little interaction between most of the characters in Berk. Hiccup is in the majority of the movie and is often only with Toothless or the new character.
The character expressions though. I have never seen an animated movie with more personality everywhere. They expanded on almost every main character from the first movie including some of the other main dragons. But these two dorks are still by far the best.
Dreamworks understands people. There is honestly very little plot to the movie but I didn't care. I just wanted to see these characters again and they did such a wonderful job. They also seem to be one of the only ones focusing on complete character relationships. Almost every movie about teens/young adults focuses on the interactions between peers but both of these movies have had a good deal of focus on Hiccup's relationship with his parents and lack thereof. Everyone in Berk is important to Hiccup's identity and they made sure that you see that; Hiccup and Astrid are one of the best examples of a realistic on screen relationship that I've seen in a long time, if ever.
The 3D was gorgeous and only made it better. The animation was stunning and I was amazed at how much attention they gave to the mechanics of flight. The soundtrack only got better. They paralleled to the first movie without overdoing it. The only thing sexualized was a man's muscles (Kit Harrington's character) which gave a whole new dimension to a character we didn't get to see much of in the first one.
Dragons 2 is gold and I cannot wait for #3 coming in two years. Check it out if you can, even if it's not 3D.