KEY POINTS:
Brad Pitt and Angelina Jolie's daughter Shiloh has a cameo role in his latest movie.
Brad and Angelina's ten-month-old daughter plays Brad and Cate Blanchett's daughter in forthcoming film The Curious Case of Benjamin Button.
"Brad and Shiloh saved the day when twin sisters hired to take turns playing actress Cate Blanchett's character as a baby wouldn't settle down," a source told National Enquirer magazine
"Everyone waited in vain while the babies were fed, changed and hugged - but nothing worked to calm them on the set in New Orleans.
"Then quick-thinking Brad realised his daughter's happy and mellow disposition made her a quick fix for the role."
Shiloh, who had been playing in the on set day care centre, was swiftly put in costume.
The source added: "She's a natural. Shiloh did her scenes perfectly and was giggling and happy throughout her big day."
Brad and Angelina also have an adopted son Maddox, five, and an adopted two-year-old daughter Zahara.
Angelina is in the process of adopting a Vietnamese boy aged between three and four.
- BANG! SHOWBIZ