Penelope says she developed calluses on both of her hands during rehearsals. "But I loved it," she says. "I was walking around showing them to everybody."
"She had the hands of a cage fighter by the end," Daniel says.
The rope routine wasn't Penelope's only challenge. Before this film, the only singing Penelope had done was on her karaoke machine. "I was really terrified," she says. "Then, it's such a beautiful process. We had really, really good teachers. ... I would love to do a musical again."