It was announced earlier this week the troubled actress is to appear opposite a male p*rn star in the film - about five twenty somethings' quest for power, love, s*x and success in modern Hollywood - but she is cautious about appearing n*ked.
A source told: "Lindsay and her team are concerned about the
n*dity that is involved. Lindsay would be required to do full frontal n*dity,
and the s*x scenes are very, very graphic."
The 25-year-old star
has already posed n*ked for Playboy magazine, but her team says when it comes
to being n*de on film, it is a different matter.
The source continued: "Yes, Lindsay has posed n*de for Playboy,
but she needs to make sure she is comfortable with it, and this is something
she can handle as an artist. It's expected that Lindsay will sign the contract
in the next two weeks, as filming begins at the beginning of July."
The
Mean Girls actress was said to be attracted to the project because it will
mean she gets to work with director Paul Schrader, who wrote Raging Bull and
Taxi Driver and author Bret Easton Ellis, who wrote the script.
The friend added: "Lindsay has admired Bret's work for a very long
time, and one of her favorite movies is Less Than Zero."
Lindsay is
currently filming TV movie Liz & Dick in which she plays Elizabeth Taylor.