The Dallas star appeared in the first installment of the action series and three follow-ups, but she needed medical attention when a scene ended in disaster.
She tells Ocean Drive magazine, "I had a stunt double who was really good, but I did do some of my own (stunts). (Director) Justin (Lin) is kind of hard-core. He's from the independent film world and wants the real shot.
"There's one scene where I'm running with a baby, and it's not a doll! I was so afraid I'd shake the baby too much. And shooting in Puerto Rico, I tore my hand open and had to go to the Er. First we Super Glued it, but I realised that was just not a good idea."