There’s a reason all the heroes in the new Despicable Me spin-off are male.
Minions, which is on track to earn $100 million in its opening weekend, stars a female villain and an all-male cast of yellow, pill-shaped heroes.
It’s unusual for a movie to rely so heavily on a cast of males, but Minions creator Pierre Coffin says it’s thanks to their general cloddishness.
“Seeing how dumb and stupid they often are, I just couldn’t imagine Minions being girls,” Coffin told TheWrap.
The creatures can’t reproduce or divide themselves, Coffin has said — and maybe that’s a good thing.
Read next: This Is How Minions Took Over the World