It's official, teen sci-fi dramas are the hot trend of 2012. With previous hits like Harry Potter and Twilight wrapping up, the new genre welcomes flicks like the eagerly anticipated Hunger Games and now Ender's Game is throwing its hat in the ring.

Variety is reporting that A-List talent Harrison Ford and child actress Abigail Breslin have been confirmed for roles in the film adaptation of the alien invasion sci-fi novel.

Ford, 69, is slated to play Colonel Hyrum Graff who trains students in combat while Breslin, 15, is cast as Valentine Wiggin, the sister of the genius protagonist Ender Wiggin.

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'I'm pretty much out of the hero business these days,' Ford told the International Business Times. 'You don't play a hero. You play a person. You play the moment. You create a character that gives expression to the story. You don't show up and say 'I'm a hero'

Breslin also took the opportunity to explain her involvement in the eagerly anticipated film.

'I never want to play the same character three times in a row, and I've been very lucky not to have to do that. I don't really have a set plan. I kind of go script by script, and if I like the character - and the script - I do it.'

Ender's Game, based on a series of bestselling teen books, is set in the future where mankind lives in constant anticipation of an alien invasion. As preparation, humans have taken to training the most promising children as eventual commanders. It's slated for a March 2012 release.