One source claims the 18-year-old was actually bullied for being there -- apparently not everyone thought she earned the right to walk the shows!
The insider spilled:
It's Jessica Chastain's world, and we're just living in it!
The crazy busy Zero Dark Thirty actress managed to carve out some room in her demanding schedule to make an appearance on Late Night with Jimmy Fallon last Friday.
No more fashion mishaps, Jessica!
[Image via WENN.]