* CompletelyDifferentTitle:
** Brazil: ''The Ultimates''
** Canada: ''The Avengers''
** Hungary: ''Angels of Revenge of the New World''
** Romania: ''Defenders of Justice''
** Turkey: ''Super Heroes''
* FakeRussian: We have Creator/OliviaDabo, who is British-American, voicing Black Widow with a Russian accent.
* PlayingAgainstType: Creator/MichaelMassee, best known for playing villains, voices Bruce Banner.
* WhatCouldHaveBeen:
** Hawkeye was meant to appear in the films, with a backstory involving his grandfather having fought alongside Captain America in World War 2. This was cut due to time restraints.
** There were plans for a third movie, which would have been a loose adaptation of the ''Ultimate War'' mini-series where the Ultimates fought the [[Comicbook/UltimateXMen X-Men]]. Likely because of rights issues thanks to ''Film/XMenFilmSeries'', the film was scrapped and replaced with ''WesternAnimation/NextAvengersHeroesOfTomorrow''.