20th Century Fox/Michael White Prods/Kobal/Shutterstock; Tim Boxer/Hulton Archive/Getty In the new documentary,Strange Journey: The Story of Rocky Horror,the cast and crew of the beloved 1975 film look back on making the movie Star Susan Sarandon says the budget was so low, she had to move every few days while in London because she didn't have a set place to stay Still, she said, the experience was fun Susan Sarandonembraced life on the set of a B movie while filmingThe Rocky Horror Picture Show. The actress appears in the new documentary,Strange Journey: The Story of Rocky Horror. In it, she recalls what it was like living in London during filming."It was a very low budget film. When I got to London, I didn't have anywhere to stay and I kept moving every two or three days," she recalled. "I would take my birth control pills and my toothbrush and I would go into a new apartment every few days," Sarandon, 78, added with a laugh. Never miss a story — sign up forPEOPLE's free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories. Stanley Bielecki Movie Collection/Getty When it came to being on set, costarBarry Bostwick, 80, recalled, "I was wet and miserable most of the time." "But I remember the whole experience being fun!" Sarandon added. "There was something about not having money. It was so humble and it added to the edginess of it because it kept the style of what the theater represented." Their costarTim Curry, 79, concurred. As he shared in the doc, "At the time, we were still so astonished to be filming it at all. But I loved every minute of it." 20th Century Fox/Shutterstock Joel Thurm, the casting director, noted, "There are elements of the film that sometimes it's like a B movie and that's deliberate. For instance, the special effects people were shocked when I said, 'No the special effects are too good. They've got to be really bad.' " He added, "Some people think it's bad filmmaking but it's really deliberate." "Many things that people took to be errors, they were part of subverting the form. But there there were other times because we were actually on a B picture budget, on a B picture schedule, it was genuinely a B picture," Thurm said. He slyly adds, "But I can't tell you which were which. I mean, life is full of contradictions and so isThe Rocky Horror Picture Show." Strange Journey: The Story of Rocky Horrorpremiered at SXSW and is currently seeking distribution. Read the original article onPeople