On my most recent visit to Universal Studios Hollywood's archive exhibit, not only did they have the DeLorean time machine on show, but they also had another of Mary Steenburgen's Old West gowns on display from Back to the Future III.
Western festival dance gown worn by Mary Steenburgen
as Clara Clayton in Back to the Future III
This festival dance costume was designed by Joanna Johnston and photographed on display on January 23, 2014, and if you like this period look, be sure to also check out this colourful train rescue gown worn by Mary Steenburgen in Back to the Future III.
Back to the Future III movie postercowboy costume worn by Michael J. Fox as Marty McFly, plus the original DeLorean time machine car from Back to the Future on display at Universal Studio Hollywood's NBC Universal Experience attraction.
Buy the movies: Back to the Future Trilogy [Blu-ray]