Richard

Exactly so. Elongated Man is considered one of the top five detectives on the planet, according to Batman. Basically, it's Batman, Nightwing, Tim Drake (Red Robin), Elongated Man, and Detective Chimp (a chimpanzee that got an extended lifespan, enhanced intelligence, and the ability to understand all human and animal languages by drinking from the Fountain of Youth).

Ant-Man wasn't relegated to only ant size or regular size prior to the movies. In the comics, Hank Pym could do all that and more decades before the movies existed.

He could change his mass (varying from a mass proportionate to his size up to his normal mass). He could grow to giant size (though doing so put enormous strain on his body at first). He could shrink and grow other people and objects (which movie Hank Pym also demonstrates). He could shrink small enough to cross into "microverses" (realities that could only be reached via sub-microscopic portals from our reality's end). He also shrank small enough to go inside Vision's bloodstream. The OG Ant-Man (Hank Pym) was also a genius biologist, entomologist, physicist, engineer, cyberneticist, and computer programmer and is considered one of the ten smartest people on Earth.