Nowadays, a company named "Impossible Project" creates film for these type of cameras, and is also a guarantee that it works. Of course, on eBay, the more antique, expired films are also up for sale, but at extremely high prices. With the extra money I had from work and allowance, I was able to buy an "Impossible Project" and an expired twin pack, for a fairly good price. To tell you the truth, I now regret buying the expired film.