Johansson says Allen roles down to 'luck'

Scarlett Johansson rejects comparisons to Diane Keaton and Mia Farrow as director Woody Allen's moviemaking inspiration - because she's convinced her roles came as a stroke of luck.

The 23-year-old counts 2005's 'Match Point', 'Scoop' in 2006 and this year's 'Vicky Cristina Barcelona' among her Allen credits.