Each of the Toa share the same basic body-type in this movie, the only exception being Nokama, the female Toa of Water. She seems to have what appears to be a cleavage, with the upper panel of her chest-plate missing. The pair of mechanical gears underneath also seem to more prominent than the ones of her male companions, even if smaller. While this doesn't make perfect sense in the BIONICLE world, it does help to make her gender instantly determinable. Recent years have seen rabid complaining among fans because the newer female Toa characters look rather masculine.
The Toa Metru, heroes of the movie, never use their element-based abilities and powers during the film, yet they come across several situations when they would be really needed. The reason for this is that their elemental energies have been almost depleted during other (off-screen) fights, and were recharging during the movie. These adventures were told in the book series before the movie came out.
The huge poster of Turaga Dume that Toa Matau crashes into in Ko-Metru has the Matoran writing for "play well", the official slogan of the Lego company. The company name "Lego" comes from the two Danish words "LEg GOdt", which means "play well".
As revealed by the DeviantArt page of production designer David Max, the body of Nokama, the female Toa, was created by taking a female human's torso and legs as a base, and drawing Bionicle pieces over it. This was done to make her stand out from the generic body types of the male Toa.
The trailer featured Toa Lhikan with a different voice.