That does not look like an authentic Julia Roberts autograph.
Julia's autograph is usually not more then a few curly initials, and even earlier in her career when she signed her full name, it still looks very different then your signature. My guess is that it's a forgery and not a very good one either. Sorry.

bump



Hopefully an autograph expert will answer. I could answer if I actually held it...


P.s.
Please Provide more info

Has anyone a clue if this could be authentic?