Out of three rolls of 15 year old film only six images turned out.
martripuy, bal_lomero, blancarleal, hop-a-long, tamarrawr & pvalyk.
If you would shoot another expired film, keep in mind this: The rule is after ten years of expiry, the film loses one full stop of sensitivity. Therefore reduce the ISO by one stop. After 15 years of expiry, your ISO 800 film should be more like a ISO 400 film.