Issa Rae Excited for 'Spider-Man' Debut, Been Reading Comics Since 3rd Grade

Issa Rae is over the moon she's making her big Marvel debut in the world of animation ... because she tells us she's been a big comic book head since she was a lil' kid!

We got Issa Thursday at LAX, and we talked about her getting her spidey senses flowing for the upcoming flick "Spider-Man: Across the Spider-Verse" -- something she's stoked about for a couple of reasons.

For those unaware, Issa's playing Jessica Drew -- another variant of Spider-Woman ... and even though a majority of the film's plot is kept under wraps, one thing about her character is certain -- she's fighting crime with a bun in the oven!

Issa's all about representation, but she has a word of warning for any pregnant ladies out there ... don't be fightin'! Regardless, she's all for the bigger message -- that women's lives don't need to be put on hold just because they're having a baby.