Aside from shopping online and disrupting other patients while in rehab at Cliffside Malibu, RadarOnline.com has exclusively learned that Lindsay Lohan spent much of her time renting movies on iTunes — specifically, movies that she'd starred in!
"There was more than once when Lindsay would rent or buy a movie on iTunes that she'd starred in," an insider who attended rehab with Lilo told Radar.
"She basically forced me to watch that crappy movie I Know Who Killed Me with her, the one where she plays a stripper."
According to the source, Lindsay didn't bat an eye or think it was weird at all to watch her own movies.
"She's such a narcissist and attention seeker that she didn't think it was weird at all to watch her own movies," the source said.
"Everyone else thought it was really embarrassing of her to do that! But whatever. It was like she was trying to re-live a time when she was actually a working actress."
In case you missed it, check out the clip below from I Know Who Killed Me.