Lindsay Lohan
I Look Like a
'70s Porn Star
7/31/2010 7:00 AM PDT
Lindsay Lohan -- I Look Like a '70s Porn Star -- Lindsay Lohan Inferno Pics
Lindsay Lohan revealed her darker side recently during a photo shoot for her upcoming porn star biopic "
Inferno" -- and she did it all wearing nothing but your grandma's underwear.

The photos were taken by well-known photog
Tyler Shields ... but they're for promotional purposes only. The film -- in which Lindsay plays porn legend
Linda Lovelace -- hasn't even been shot yet.