1. The portrayal of Rocket was inspired by a real raccoon named Oreo. Oreo is the basis for what Rocket looks like, and director James Gunn even ended up bringing him to the Guardians of the Galaxy premiere event in Los Angeles.

2. The characterisation of Rocket and Groot is all in their eyes. If audiences were going to believe that they were real and feel for them emotionally, they would need to be able to look into their eyes and read something.

3. The three lights on the Nova Corps armour represent the three Suns of Xandar; the peacekeeping organisation's home planet.