4.3.2.1. (which stands for "4 girls, 3 days, 2 cities, 1 chance") is a 2010 British crime thriller film directed by Noel Clarke and Mark Davis, written by Clarke and starring Emma Roberts, Tamsin Egerton, Ophelia Lovibond, Shanika-Warren Markland, Mandy Patinkin, Helen McCrory, Kevin Smith, Susannah Fielding, Camille Coduri and Clarke. 4.3.2.1. follows four feisty girls who get caught up with a diamond theft heist.

Clarke wrote 4.3.2.1. with the intention of making a more mainstream film in regards to his previous work, Kidulthood Adulthood and West 10 LDN, which were gritty crime drama films set in West London. 4.3.2.1 was released in the United Kingdom on 2 June 2010. The film received mixed to negative reviews and was a box office bomb.