Batman v Superman: Dawn Of Justice looks set to miss out on a place in the top 10 biggest superhero films in UK history.
The blockbuster saw its box office sales slump by 68% in only its second week in British cinemas.
It has now taken £27.8 million in the UK, enough to make it one of the biggest movies of the year so far.
But if audiences continue to fall at such a rapid rate, Batman v Superman stands little chance of joining the ranks of the UK's most successful superhero films.
It would need to make more than £30.6 million to enter the top 10, overtaking 2013´s Man Of Steel.
Rival superhero film Deadpool, still playing in UK cinemas, is already in the top 10 at number eight, with ticket sales of £37.6 million.
The most successful superhero movie in UK cinema history is 2012´s The Dark Knight Rises, which made £58.7 million.
The Dark Knight (2008) is in second place on £55.4 million, while Marvel Avengers Assemble (2012) is third on £54.1 million.
Meanwhile the biggest film of all time, 2015´s Star Wars: The Force Awakens, continues to attract audiences.
It is still showing in 30 cinemas across the country, and has now made a total of £123 million in the UK - £12 million more than the previous record-holder, 1998´s Titanic.