Enligt OP: s kommentar ovan var det 2003 animerade filmen Elysium , inte att förväxlas med 2013-filmen med samma namn.
Per en recension på beyondhollywood.com :
... about an alien race called the Elysians who invades Earth after one of their ambassadors is killed during a diplomatic mission. A full-scale invasion of Earth is ordered by the Elysian’s supreme commander, a General name Necros. Using superior war machines, including giant skyscraper-size walking robots called mechas, the Elysians easily conquer Earth, leaving small remnants hiding in underground shelters. Soon, we learn that three of the survivors are destined to lead the human leftovers to freedom — or at least out of those dinky underground shelters.
One by one, the chosen humans are whisked away from certain death by a mysterious woman who lives in another underground base where three giant mechas also reside. The humans are told they were destined to pilot these mechas against the alien invasion ...
Granskningen innehåller följande bild, antagligen taget från filmen: