The Marvel blockbuster has already collected the highest opening day in industry history and the highest ever five day opening weekend on April 27.

The story line revolves around iconic superheroes Ironman, Thor, Black Widow, Captain America and The Hulk in their quest to restore vanquished allies from Avengers: Infinity War and defeat intergalactic villain, Thanos.

Majestic Cinemas chief executive Kieren Dell said the film was on track for sellout shows in Port Macquarie.

"The cinema had an opening with 1,000 people on Wednesday, and over 5,000 people in five days which is almost every seat full," he said.

"It's been six sessions a day running non-stop, not only is the first sold out and but every session after.

"We had over 250 people in for a session on Sunday, it's quite extraordinary."

Mr Dell said the movie was as popular as other modern masterpieces Avatar, Lord of the Rings and Star Wars The Force Awakens.

"Nationally it's made $44 million in the first five days of release and if Avengers continues at the same pace it will pass Force Awakens and hit the mid 90s," he said.

"It's the culmination of 11 years and numerous Marvel movies, forecast as the climax of that and the critics ratings appear to show it delivers on its promise.

"I've heard there are some emotionally heart-wrenching scenes.

"I wouldn't be surprised if it is running for eight or 10 weeks."

The film has already taken out the title for highest ever pre-sale total, highest opening screen count, and highest single day of business in industry history.

It also takes the title for the 21^st biggest film of all time.

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