Book to Film Changes

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BookFilm
Contains the story Ender's Game Contains the stories Ender's Game and Ender's Shadow
Takes place in 2195 (Canon, from Jake Black in conjunction with OSC)No specified date, although definitely in the future (Confirmed by Bob Orci)
The story takes place over a span of 6 yearsThe story will be compressed. "Time has been compressed impressionistically. Though we don’t specify how much time has passed, leaving it somewhat up to your imagination, it is clear that the time span is not as long as the book’s." -Official Production Blog
Ender is 6-years-old at the beginning of the storyEnder is 10-years-old at the beginning of the story
Ender is blondeEnder is brunette
Valentine is blondeValentine is brunette
Peter is brunettePeter is blonde
Major Anderson is maleMajor Anderson is female
Major Anderson has no first nameMajor Anderson is given the first name "Gwen"
Sergeant Dap has no first nameSergeant Dap is given the first name "James"
Sergeant Dap's character is somewhat gentle and loving Sergeant Dap's character is described as "a real hardass"
Sergeant Dap is whiteSergeant Dap is black
There are NO socks in battle schoolThere ARE socks in battle school
Bean is in a younger launch group than EnderBean is in Ender's launch group
ShenCUT
Locke and DemosthenesCUT
First and Second InvasionA single "Great Invasion"
40 soldiers in a battle school army14-16 soldiers in a battle school army
No reference to Mazer dying in battleI.F. claims Mazer died in battle
Sister CarlottaCUT
AchiellesCUT
9, opaque, cube battle rooms1, transparent, spherical battle room
Scene not includedAsa recalls this scene "One scene that I really remember is a scene with me and Hailee (Steinfeld). We’re in the Battle Room. She’s hit her head on one of the floating objects. I’ve jumped out … I’ve disobeyed my orders and jumped out to catch her."