Australian airline Qantas is apologising after a recent flight from Sydney to Tokyo featured an R-rated movie shown on every screen. 

According to online comments from people who said they were passengers on the flight, the movie could not be turned off.

The crew played the movie following the malfunction of personal in-flight entertainment systems last week, according to a person on Reddit. The user added that the film, which features sexually explicit language, images and words displayed on the screen, played for almost an hour before it was shut off.

Qantas said in a statement that the crew chose the movie "based on the request from a number of passengers."

Some media outlets have identified the film as  "Daddio," starring Dakota Johnson and Sean Penn. 

The New York Times reported that the film was rated R (restriction) for "bared breasts and barroom language."

Qantas said in the statement that it was reviewing how the movie was selected.

"The movie was clearly not suitable to play for the whole flight, and we sincerely apologise to customers for this experience," a Qantas spokesperson said, adding that the screens were eventually changed to a family-friendly movie for the rest of the flight.