It seems Transformers: Bumblebee isn't the only spin-off planned in the blockbuster action series - producer-director Michael Bay has said there are 14 more Transformers movie stories already written.

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When asked by MTV if he could speak to any other spin-offs in the works, Bay revealed just how much more we could see - and seemingly marked himself as interested in directing at least one more film in the franchise:"There are 14 stories written, and there's good stuff. I would like to do one of them, though."Bay's made something of a habit of saying that each Transformers film will be his last - he said the same of the upcoming The Last Knight in February - and it seems he might have reconsidered his decision once again.We learned a lot more about The Last Knight - due for release on June 23 - at CinemaCon last week.The Bumblebee spin-off is more of a mystery, although we know it will be directed by the man behind Kubo and the Two Strings , and be a lower-budget proposition than the mainline films.

Joe Skrebels is IGN's UK News Editor, and he doesn't understand how this has happened. Follow him on Twitter