R2-D2 rolled onto the set of Jesus of Nazareth???
According to IMDB trivia. No wonder Star Wars was such a blessed trilogy! LOL
https://www.imdb.com/title/tt0075520/trivia/?ref_=tt_trv_trv
"While shooting in Tunisia, the set had a surprise visit by R2-D2. George Lucas was shooting Star Wars: Episode IV - A New Hope (1977) at the same time and, according to actress Koo Stark: "Operated by remote control, R2-D2 had to trundle off camera and disappear behind a sand dune. But the remote control failed to stop the robot and he wandered onto the set of Jesus of Nazareth."