Martha West, 12, starred alongside Paul Bettany in 2009 movie Creation, playing Charles Darwin's daughter, Annie.
Her father is pleased she's showing potential at such a young age - but admits he did try to put her off the profession.
The Wire star tells Britain's Guardian newspaper, "She kept bothering me. So eventually I said: 'All right if you want to see what it's like, audition for this! And then you'll see what hell my life is.' Turns out she's got real talent and who am I to stand in the way of that?"