Go and see The Lego Movie. Drop whatever you are doing and go and see The Lego Movie. Right now. Immediately. Get in a car or on a bus or run, don’t walk, to your nearest cinema to go and see The Lego Movie now. Do it. Vamanos.
An abandoned plotline involved Kevin's eggs granting eternal youth to those who ate them.
Charles Muntz's death scene went through many variations. Originally, he was to be carried up into the sky by the balloons around his ankle. This was scrapped for being too ambiguous. Another version involved him chasing Kevin into her maze-like home, and getting lost (This was also abandoned for it's ambiguousness).
The pixar pizza truck appears three times in the movie.
Lotso, a character from the movie Toy Story 3, makes a cameo as a regular toy.
All characters are based upon circles and rectangles, except for the villains who are triangles.
As the dogs fall off the cliff into the river below while chasing Carl, Russell, Kevin, and Dug a Wilhelm Scream can be heard.