A video taken by a passenger of the wrecked Italian cruise ship Costa Concordia shows a member of the ship's staff asking everyone to remain calm and return to their cabins or remain in the lounges. The announcement, which came 40 minutes after the ship hit rocks off the coast of the island of Giglio, is designated as being "from the captain," and the woman stresses that "everything is fine."

The staff member also tells the passengers that the crew has "finished" with the "electrical problem with the generator," and notes that "everything is under control."

The video will no doubt bolster the multi-million dollar class-action lawsuit that is expected to be filed in Miami next week by two US law firms joined with the Italian consumer association Codacons, the Telegraph reports. Costa Cruises, the ship's operator which is owned by the US-based Carnival Group, has insisted that it was the "character problems" of Captain Francesco Schettino that are to blame for the twelve deaths and numerous injuries, and have offered refunds and compensation to passengers.

Schettino has been accused of not reporting the crash soon enough, thus delaying the evacuation of the ship.

There are also allegations that Schettino, who is on tape refusing the orders of a superior to board the ship after abandoning it, was distracted by a 25-year-old Moldovan dancer who had been on the ship for six months as a Russian translator. She has acknowledged spending time with Schettino, but denies any romantic involvement with the captain.

"You know why?" she told an Italian newspaper. "Because he is always showing everyone a photo of his daughter when she was small. A man who wants a lover does not behave like that."

Twenty passengers remain missing, as divers continue to search the grounded cruise ship.