The Hindu Marriages Act 1955 document issued by magistrate is the only document needed. Please note that USCIS cannot question a legitimate legal document issued by Indian government and needs to accept it as final binding evidence of the marriage. Albums, photos and videos are great to carry but of no use, officers do not look at those. Have your wife freshen the henna on her hand and wear the full set of bangles indicating that you guys are newly wed (congrats by the way!!).
Best wishes,
Dr. Sandeep Shankar, Colorado Heights University, www.chu.edu