Any Star Wars spin-off is always a big deal, but the one about Han Solo that is set to star Alden Ehrenreich as the young version of Harrison Ford's character sounded especially promising.

Filming began at Pinewood Studios in London back in February, but it seems all was not well on set as the two directors - Phil Lord and Christopher Miller, who had previously enjoyed success with 21 Jump Street and The Lego Movie - have left the movie.

A statement from Lucasfilm released last night read: "Phil Lord and Christopher Miller are talented filmmakers who have assembled an incredible cast and crew, but it’s become clear that we had different creative visions on this film, and we’ve decided to part ways. A new director will be announced soon."

Lord and Miller themselves said: "Unfortunately, our vision and process weren’t aligned with our partners on this project. We normally aren’t fans of the phrase ‘creative differences’ but for once this cliché is true. We are really proud of the amazing and world-class work of our cast and crew.”

Variety are reporting that Ron Howard is in the frame to step in. In any case, the film is still on track for a May 2018 release.