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:
She definitely wasn't ready to go home after the SAGs wrapped, and we don't blame her!
Amanda Seyfried partied with her Les Miserables co-stars after the SAG Awards on Sunday night, attending a dinner at a posh West Hollywood hotel.
A jeweled silver Judith Leiber clutch, Brian Atwood peep-toe pumps, and silky mermaid waves completed her femme fatale look.
[Image via AKM-GSI.]