Mary Jane cause of Eric Roberts Celebrity Rehab

Hollywood is hardcore, so traditionally, when one goes to rehab, it’s for such drugs as cocaine, heroin, and meth.

Marijuana, however, is not one you would expect to be on that “celebrity rehab list.” It is, now, thanks to Eric Roberts admittance into VH1′s Celebrity Rehab with Dr. Drew.

Julia’s older brother and the father of Emma Roberts is allegedly shacking up with such famous folks as Jeremy London, Janice Dickinson, and Leif Garrett in order to kick the habit.

“Eric quit drugs and alcohol in 1995,” the actor’s wife, Eliza Roberts (an actress and casting director as well), told E! News. “He has no interest in anything, other than marijuana.”

Audience, do you think it’s possible to get that addicted to marijuana or does Eric simply want the attention? Is marijuana as “hard” as alcohol or even heroin?