"Audiences like it. People will be surprised at its results," said IMAX's Gelfond, who also downplayed the summer slowdown in box office takings.
"The movie business has been around for over a hundred years - there are good years and bad years," he said. "Every time there are two good movies in a row, everybody says it's back, but if there's a downturn, people say it's over."
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But things are looking up, with experts forecasting an uptick in box office returns next year.
"2015 and 2016 are looking like very robust years, with a whole slew of blockbusters coming along" Gelfond said.
While Paul Dergarabedian, senior media analyst at Rentrak, wrote in a blog post that the summer of 2015 could be the biggest on record, and the first to cross the $5-billion revenue mark.
"Ultimately, the movie business is one of the most cyclical businesses and uptrends/downtrends are the nature of the beast," he said.
Films including "The Avengers: Age of Ultron" and "Jurassic World" will hit the big screen next summer.