Tom Cruise didn't want the exo-suits to be too CGI, so it would be more real to the audience. He showed up two months early to research and develop the suit. He thought its weapons were fun and cool. Emily Blunt was unprepared for the weight of the suit which was between 85-90 pounds, and the armaments between 120-125 pounds.
Tom Cruise admitted that Emily Blunt was an actress he wanted to work with for a long time, and he recommended her to the producers for the role of Rita.
Doug Liman wanted to do the film because it showed a role that Tom Cruise hadn't done yet: someone very bad at what he does.
After the film's box-office failure in the U.S., (it still managed to turn a profit worldwide), its marketing strategy was changed slightly for its DVD release. In this case, on the front of the video box, the film's tagline was emphasized heavily, with the title "Edge of Tomorrow" in small text at the very bottom of the case. As a result of this packaging, it gives the illusion that the film's title is "Live Die Repeat." Warner Bros. maintained that the title of the film had not been changed and that "Live Die Repeat" was only a tagline, yet this appears in front of "Edge of Tomorrow" not just on the cover, but on the spine of the packaging and even on the discs. The rental company Red Box has the film listed under the letter "L" in its kiosks, and all online retailers have the digital streaming version titled "Live Die Repeat: Edge of Tomorrow."