Umm, ok, NO. NO NO NO NO NO.
Jodie Foster had to go through TONS of psychological testing to make sure taking the role wouldn't freak her out, and a body double (her older sister) was used for all the sex scenes.
There's no way you can compare a masterpiece like Taxi Driver to some pictures in Vanity Fair, myspace, whatever. It's apples and oranges.
Same with Pretty Baby, although I don't think Brooke's mom was as stable as Jodie's so who knows what went down on that set. I have to believe that Susan Sarandon would have kicked the ass of any skeezy dude who tried to mess w/ lil' Brooke though.
These are films that have held up and that have stellar performances. I seriously doubt if anyone is going to even remember Miley Cyrus and her teenybopper pop and silly show 3 years from now, let alone 30 years from now.
Her parents & manager wanted to try and get a more grownup image for her, people saw the pics and freaked out, and now they're backpedalling, IMO.