Guillermo del Toro writing 'Pacific Rim 2'

Guillermo del Toro is currently working on the Pacific Rim 2 script.

The writer/director revealed that the action movie sequel is yet to receive the greenlight from Legendary Pictures.

When asked by IGN whether Blu-ray sales would decide the sequel's future, del Toro said, "No, we are writing the sequel. Travis Beacham and I are writing, so that is active.

"The decision to greenlight or not, that's definitely above my pay rate."

Pacific Rim had a disappointing opening at the US box office, but went on to perform strongly worldwide.

Grossing over $400 million (£250 million), the film is the best-performing action movie based on an original intellectual property released in 2013 so far.

Star Charlie Hunnam recently dropped out of the Fifty Shades of Grey movie, leading to speculation that he could return for Pacific Rim 2.

Dear GDT:

I have written the script for you. It is set forth below.

The aliens deploy giant mecha warriors of their own through the dimensional hole. We respond by genetically engineering our own kaiju that we mind-control with the same "flow" technique as before. Humans then experience fighting as a giant monster, and turn the tables in the evil-alien-mecha's.

You're welcome,

Li'l Jay

I still haven't seen Pacific Rim - I'll have to remedy that.

I loved it.

You didn't like it, Frax? I'm really surprised, I thought this would be totally up your alley.

I thought so too. Turns out we were both wrong -- me for not liking the movie, you for predicting wrong.

Pacific Rim 2 might still happen, according to Legendary Pictures CEO Thomas Tull. In a new interview, the film’s producer pointed out despite a general malaise surrounding the film in the United States, it did incredibly well internationally and has been a bigger-than-expected hit on home video and with merchandise. Tull says talks with director Guillermo del Toro will happen soon to figure out the fate of the film