Cineworld has said that its trading for the period from 28 December 2012 to 14 May 2013 has been in line with expectations, with total revenues up 14.3%. The group said that its box office market share on a like-for-like basis had improved to 25% from 24.7% in the same period last year. Including Picturehouse, the group's box office market share has increased to 27.1%. It said its increase in box office revenue was due to a rise in average ticket price of 3.9%, with admissions marginally lower than the same prior year period. The company said its positive retail revenue performance, up 14.5%, was due to an upward trend in spend per person, which increased by 3.5% against the corresponding period last year, “reflecting favourably on our targeted promotional activities”. Picturehouse achieved a 6.6% increase in spend per person compared to the corresponding prior year period. It said that the increase in Other Income within Cineworld was due to the comparatively stronger performance of screen advertising compared to the corresponding period last year. On 30 April, the OFT referred the group’s acquisition of Picturehouse to the Competition Commission due to concerns that it may reduce local competition in certain areas. Cineworld will co-operate with the Competition Commission in its investigation. The company said there is a strong line-up of films for the remainder of the first half, including "Star Trek: Into Darkness", "Hangover 3" and in 3D "Man of Steel" and the already successful "Iron Man 3". Looking ahead to the second half, there is good 3D product which includes "Monsters University", "Despicable Me 2" and "The Hobbit Part 2". These are complemented by an exciting range of 2D films, which includes the next instalment of the Hunger Games series "The Hunger Games: Catching Fire". The group said: “The Board remains confident of delivering growth for the year as a whole in line with current market expectations.”