Firefighters rushed to the scene on Mather Street at around 8.30pm on 5 February following a 999 call.
Crews arrived to find a Citroen on its roof with an elderly man and woman trapped inside.
Crew Manager Andrew Jones said: "Two fire engines and crews from Blackpool responded to a report of a car on its roof with two people trapped inside.
"Firefighters used hydraulic equipment to cut away the side of the car and rescue the casualties.
A spokeswoman for Lancashire Police said the car was being driven by an 88-year-old woman, while a 96-year-old man was in the passenger seat.
Both were taken to Blackpool Victoria Hospital, her for a check-up, and him for treatment for a head injury, she added.