By Jen Heger

Breaking Celebrity News Assistant Managing Editor

Tatum O'Neal's ongoing drug addiction has her estranged from her children, family and friends, and her inner-circle extremely concerned for her well-being, Breaking Celebrity News is exclusively reporting.

Meanwhile, Tatum and her brother Redmond are slamming their father’s new new memoir, Both Of Us: My Life With Farrah, because it’s not an honest account of their tumultuous relationship with the Love Story star and just promotes what they describe as "Ryan's self-serving narcissistic tendencies," according to a source.

"Since Tatum has b