Tom Cruise hit the red carpet in London on Monday (December 10) for the world premiere of Jack Reacher.<br/> <br />At 5ft 7in, Cruise is much slimmer and shorter than the 6ft 5in, 200 pound-plus character created by author Lee Child in the original books.<br/> <br />But he said he'd discussed the issue with the author.<br/> <br />SOUNDBITE: Tom Cruise, actor, saying (English) :<br/> <br />"You know, he created the character, I had my own opinion that I didn't say to Lee and then he came back and pretty much reflected what I had felt about it. But had he said 'look I'd rather not', I would not have played the character. And I think that is a characteristic for me, not character, and that's kind of how I approached it."<br/> <br />Jack Reacher is based on 'One Shot' -- one of the series of best-selling novels by Child about the eponymous former soldier turned drifter who travels the United States dealing out his own brand of justice.<br/> <br />Cruise was also a producer on the movie, which is due for US release on December 21st.