The dancers are shown leaving the club wearing sexy stripper outfits. In reality, dancers wear their own casual clothing like t-shirts and jeans when arriving and leaving the job. The stripper outfits are owned and provided by the club while they're working. The dancers also dress down to attract less attention outside the club.
Shadow visible on the Detective's jacket all the way through the scene where he describes the killer's childhood. The Detective also flubs his lines repeatedly.