Rapper 50 Cent will take the law into his own hands when he teams up with screen great Robert De Niro in a gritty cop thriller next year (07). The hip-hop star, who was arrested in New York City in September (06) on suspicion of traffic violations, will investigate police corruption as De Niro's uniformed partner in NEW ORLEANS. The movie, set in the aftermath of Hurricane Katrina, will chart De Niro's quest to avenge the suspicious death of his previous partner.