"I didn't have any fear of heights before I did the movie and then afterwards, suddenly, now I'm petrified of them," Felicity tells "Good Morning America", explaining a series of on-set accidents may have led to her new discomfort.
"On the very first day of shooting we took the balloon up," she explains. "They were doing a helicopter shot... The balloon took off and it was all fine until suddenly we hit a load of trees and Eddie and I are holding hands, bracing ourselves as we hit the ground at this incredible speed."
"The basket bounces, Eddie and I bounce to the back. I think that I've broken my back... and we're just sort of like lying there, thinking that we might be paralysed... We were back at work at 5 A.M. the next day."