You'd think the 27-year-old would go full-on seXXXy, but Amanda's been relatively demure, which was particularly evident at the movie's screening at Planet Hollywood in Las Vegas on Sunday.
The skirt may have been short, but when your arms and boobs are hidden under fabric, you might as well be wearing a nun's habit, especially if you're a Hollywood starlet. Right?! Ha!
[Image via Retna LTD.]