The newcomer is set to play the mischievous boy who never grows up in director Joe Wright's 'Pan', according to Variety.com.
This comes after Warner Bros. held a casting call for 'Pan' last month, where they were looking for an aspiring male actor aged 11-13, who is no taller than 5ft 4inches, for the lead role.
Miller will star alongside Garret Hedlund who has been offered the part of Captain Hook, Hugh Jackman who has been cast as the villainous Captain Blackbeard and Rooney Mara who is in talks to play Tiger Lily.
The film will look into the origins of Pan, an orphan who is taken to the magical world of Neverland where he goes into battle against the evil pirates and becomes a hero among the natives.
Wright's offering will make a drastic change from past adaptations of the Peter Pan story which included 'Hook' starring Robin Williams in 1991 and Disney's 1953 animation classic.
'PAN' will be released in summer 2015.
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