As a huge fan of the movie and Lego games in general, I got to say this entry into the Lego series by Traveller's Tales is one of the weaker ones. The game's campaign follows the movie closely and each level is based off a key scene from the movie, like Lego Lord of the Rings or Lego Star Wars. In those levels is a fun mix of puzzle solving and platforming using different characters with unique abilities. It's essentially what we've come to expect from all the Lego games up to this point. What makes this one different is that it's actually tying in with a new movie, not just based upon an old franchise. Fortunately, it's tying in with a movie about Legos, a perfect fit. But the syndrome of movie tie-in games rears it's ugly head into The Lego Movie Videogame. It feels more rushed than previous Lego games, like the designers are stretching out scenes in the movie to go on for a 20-30 minute level. It feels like they're padding the game out to be much longer than it should be, and that creates boredom. This reminds me of the Lego games on the Nintendo DS, where the levels are padded out with extremely repetitive puzzles and and button-mashy combat sequences. It's a shame too because I was really looking forward to this game. In terms of everything else, the music and graphics are fantastic and fit the style of the movie perfectly. This is one pretty looking game and is the first of the TT Lego games to be entirely made of Legos, so that's nice. Unfortunately, the core gameplay feels scaled back and TT just gave us the bare minimum, even the open world part of game is contained of small chunks instead of one big world. Really, the game is not bad, I would recommend it if you like the previous Lego games or really enjoyed the movie, it just isn't solid as previous Lego games.
UPDATE 12/2/14 - I actually have grown a soft spot for the game so far. I still find Lego City Undercover and Lego Marvel better, but I love the source material so much that, it's hard for me to look at it as the weakest (Lego Indy 2 and Star Wars 3 are much worse), it gets better, trust me.