Atkinson, who joined the agency in April 2002, becomes head of film, UK, and Hall-Smith takes the role of head of TV and theatre.
Their promotion follows the arrival of actors Ralph Fiennes, Kenneth Branagh and Sam Mendes on Premier’s books.
Before joining the agency, Atkinson worked for the UK publicity division of film distributor Buena Vista International, whose film Calendar Girls is being promoted by Premier.
‘He will continue to develop new business opportunities for the company and lead UK publicity campaigns,’ said Premier PR chairman John Reiss.