Since its launch, several individuals made claims over the origins of the format or elements of it, with each accusing Celador of breaching their copyrights. In three cases, the matters could not be proven by the claimants – in 2002, Mike Bull, a Southampton-based journalist, was given an out-of-court settlement when he claimed the authorship of lifelines was his work, though with a confidentiality clause attached; in 2003, Sydney resident John J. Leonard made claims in that the show's format was based on one he had made of a similar nature, but without the concept of lifelines; in 2004, Alan Melville was given an out-of-court settlement after he claimed that the opening phrase "Who wants to be a millionaire?" had been taken from a document he sent to Granada Television, concerning his idea for a game show based on the lottery.