Independence Day director Roland Emmerich is pressing ahead with the film's two sequels and has said progress is being made.
The first film, starring Will Smith, came out in 1996, but Roland and producer Dean Devlin still want to complete a trilogy of the sci-fi flicks.
According to Empire, they have even finished both scripts.
The sequels will be titled ID Forever Part I and Part II and will be set 20 years on from the action in the original Independence Day.
In the first sequel, aliens arrive on Earth after a long journey through wormholes to respond to a distress call and wage war on humans again.
Roland told Entertainment Weekly: "The first one ends on a little success, but only enough to give the humans hope, and then in the second one they have to free themselves again."
The cast for the new movies is still being confirmed - Bill Pullman has said he'll come back, but Will hasn't committed yet.
But Roland and Dean have a plan up their sleeve in case the original cast don't return.
They want to focus on a few new characters, including Will's stepson from the first film.
Roland said: "It's still some of the same characters, but also new younger characters. It's a little bit like the sons take over."