Various movie posters advertising the film. The first shows Nemo lost in a swarm of circling fish, the second features Bruce sneaking up behind Marlin and Dory, and the final one features the various characters of the film in the Sydney Harbor.
Lets take a look at one of the trailers.
Nemo is the only clownfish who survived the barracuda attack on Coral’s (his mother) eggs, because of the attack he has an underdeveloped right fin, his father and him call it his “lucky fin”. His name alludes to Captain Nemo of Jules Vernes’ 20,000 Under the Sea.
Crush and Squirt are the sea turtles who ride the EAC (East Australian Current), and help Marlin and Dory get to Sydney. Even though they only appear for a relatively short period of the film, compared to other characters, they are well loved among many fans and enthusiasts.
The Sharks, Bruce, Anchor and Chum, first seem to want to eat Marlin and Dory, but then the audience finds out that they are on a “no fish diet”, and they are on their way to a “support group” and needed fish buddies. Their motto is, “Fish Are Friends Not Food”.