Actor Rob Brown, who stars in the HBO series “Treme,” has filed a lawsuit against Macy’s and the New York City Police Department, saying he was racially profiled while shopping in New York. Brown, who is also known for his role in the film “Finding Forrester,” told the New York Daily News he was “paraded” through Macy’s in handcuffs and detained for an hour as police accused him of using a fake card to buy a watch for his mother.