Harry Potter fans will get the chance to star in the next Potter movie when Warner Bros hold open auditions in London for two key roles in the next film.

The makers of 'Harry Potter and the Half Blood Prince' will be holding open auditions in London’s Earls Court Exhibition Centre for the roles of Lavender Brown, on 1 July, and Tom Riddle, on 8 July. 

Teenagers aged between 15 and 18, who reside in the UK or Ireland are welcome to begin queuing at 8.00 am and casting personnel will begin taking applications two hours later at 10.00am The queue will close at 1.00pm.