The increasing popularity of 3D films helped Cineworld to lift profits by nearly a quarter in the first half of the year.
Nearly a third of the chain's box office takings are now accounted for by film releases in the format, despite the number of such productions falling back.
Cineworld operates 80 cinemas and describes itself as one of the market leaders in 3D, which attracts a higher ticket price and also enables the business to sell 3D glasses.
Ticket sales in the format helped the average admission rise by 4.7% to £5.39 in the first half of 2013 compared to the same period last year.
Admissions also increased by 5.7% to 24.3 million, helping box office takings to climb 10.5% to £131 million, while screen advertising revenue was up by 12.7%.
Profit before tax at the group, which last year acquired the Picturehouse chain, was up 24.1% to £16.5 million. Total revenues rose 21.9% to £201.6 million.
Chief executive Stephen Wiener said: "Once again our results show that cinema is a resilient investment in challenging economic times."
He said a strong line-up of releases for the second half of the year, including Despicable Me 2, Monsters University and The Wolverine, added to confidence that the business was on track for the full year.
Cineworld said the top ten highest grossing films accounted for more than 40% of box office revenues, underpinned by the performance of Les Miserables, which took £40 million nationally.
There were other good performances from Iron Man 3, The Croods and Star Trek Into Darkness. The three were among 24 3D film releases during the period, compared with 28 last year.
But this format represented 30.5% of Cineworld's box office, up from 18.5%.