Emily Blunt is in talks to join Tom Cruise in the cast of 'All You Need is Kill'.

Warner Bros. were impressed with Emily's tough girl credentials

when she was cast as female lead in the ill fated 'Man From U.N.C.L.E' project - which was halted after the studio couldn't find a male star and director Steven Soderbergh dropped out - and are keen to pair her with Tom in the sci-fi comic book adaptation, according to Variety.

'All You Need is Kill' follows the story of a soldier in a war against aliens who is forced to re-live his last day alive again and again after he is killed.

Through having to re-live the same experiences he gets better at tackling The Days challenges. Emily would play another soldier who fights alongside him.

'The Devil Wears Prada' actress has previously said she was looking for a role in a sci-fi or superhero film where the female character has substance.

She said: ''Usually the female parts in a superhero film feel thankless: She's the pill girlfriend while the guys are whizzing around saving the world. I didn't do the other ones because the part wasn't very good or the timing wasn't right, but I'm open to any kind of genre if the part is great and fun and different and a challenge in some way.

''I would love to do a comic-book movie or a science-fiction film that would scare the bejesus out of me.''

'All You Need is Kill' is produced by Erwin Stoff, Tom Lassally and Jason Hoffs. The Script was originally written by Dante Harper and is being re-worked by Joby Harold, who is also executive producer.