So with the success of Avengers, Kevin Feige's Ant-Man movie is a go. Ant-Man is the first of many superhero identities of Henry "Hank" Pym, a founding Avenger (in the comics) and scientist who developed "Pym Particles," which help him shrink to the size of an ant and communicate with ants (hence the name). He also has the ability to grow in size, in which case he adopts the sobriquets of "Goliath" and "Giant-Man," and sometimes he has the power to shrink and fly and throw sting blasts like a yellow jacket, hence the name (wait for it) Yellowjacket. Just look at this picture.
|Pym's multiple identities|
Top row: Ant-Man and Goliath
Bottom row: Giant-man and Yellowjacket
Now, the one we're interested in is that last one, Yellowjacket. You see, Hank Pym has a reputation If you ask a comic book fan who's not all that familiar with the character to define him with one word, most of the time you'd get the same answer: "wifebeater." This is because, back in 1981, Yellowjacket hit his wife Janet Van Dyne, the superheroine (and fellow founding Avenger) the Wasp, and somehow has been defined by that moment since.
But it's a load of bunk. It doesn't hold up, and it especially doesn't hold up in superhero comics. It's taken out of context, oversimplifies the situation, trivializes actual domestic violence, disregards mental illness, and is unfair to the character and to Marvel Comics in general. Let's work through the sequence of events, shall we?