Originally Posted by hollywoodreporter.com
Among the most "electric" moments on set came after Walt (Bryan Cranston) abducted baby Holly, and the infant started calling for her mother. The scene originally called for Walt to bring the baby up to eye level and have a change of heart as he looked into her eyes. But on set, the baby's mother was standing behind Cranston as they shot, and the infant locked eyes with her.
"She started saying the word 'mama' over and over," Johnson says. "Bryan used it and played it perfectly. Obviously the baby was brilliant, but the credit goes to Bryan for using that and playing off of it so well. That's the sort of thing you can never plan, and you have to go with it when it happens."