updated 08/10/2011 AT 11:00 AM ET
•originally published 08/10/2011 AT 8:00 AM ET
How did Sandra Bullock bounce back from a hard year?
Credit her 19-month-old son Louis, her sense of humor and her decision to jump back into the acting world in a big way.
“She was very keen to get back to work,” says Stephen Daldry, who directed her in Extremely Loud and Incredibly Close, one of two dramas the actress, 47, has filmed since last fall.
“She threw herself in with her usual enthusiasm and energy, and she was very relaxed,” he added. “She had little Louis with her, and it was a very familial environment on-set.”