Harrison Ford's ankle injury may be more serious than originally thought. 

Access Hollywood spoke to the actor's son, Ben Ford, about his father's mishap on the set of Star Wars: Episode VII -- and he says his father could need a plate and screws put into his ankle.

Ben also said that director J.J. Abrams may have to shoot around the star's injury, shooting him from the waist up while he recovers.

Meanwhile, Harrison's wife Calista Flockhart has flown to London to be by her husband's hospital bedside.

Harrison got hurt on Thursday, reportedly by a door on the Millennium Falcon. Episode VII is set to open on December 18th, 2015.

photo: getty images