child star jenette mccurdy grew up playing the sunny, plucky role of sam on "i, carley."ind the camera she says she suffered an agonising adolescence marked by eating disorders and abuse from her exacting and dominating mother. my "nightline" coanchor juju chang has the story. >> on the outside, i was doing a lot of -- performing the tap dancing, the smile and the showing up and landing on my mark, and i'm going to just do what i need to do and be this happy-go-lucky nickelodeon kid. >> my name is samantha puckett, i'm from seattle, and i love fried chicken! >> inside i was hurting. it was painful. i was angry. i felt unsupported. >> you pull back the curtain on child stardom. it is not a pretty picture. >> not as i see it, no. >> reporter: at 15, jenette mccurdy was one of the most recognizable child stars on television, playing sam puckett in "i, carley." >> where'd my straw go? >> here. >> reporter: she was known as the bunny bff. she says behind that bubbly on-screen persona, nothing about her real life was funny. what were the pitfalls of child fame? >> you're playin