Hollywood film studios are known not only for their creativity but also for their incredible resourcefulness. The staff at these studios are skilled at creating large-scale projects with astronomical budgets, as well as saving money where possible. Various tricks come into play, such as reusing the same props across different films.
For instance, the set pieces from Charlie Chaplin's classic film The Gold Rush were used in the production of over two hundred films.

The action of the famous Back to the Future trilogy, directed by Robert Zemeckis, takes place in the fictional town of Hill Valley. To create the cozy atmosphere of an American suburb, the production team used numerous locations in Los Angeles and its surroundings, including many studio sets.
The same soundstages were also used for another great science fiction film, Steven Spielberg's E.T. the Extra-Terrestrial. The sets from this film were later reused another 37 times.

Sadly, in 2008, a major fire in California destroyed a significant amount of stage props and entire film sets. The sets from Back to the Future and the production site for E.T. were also lost in the fire. So, the wonderful worlds from these films remain for us to admire only on screen.