From Community College to studying abroad?

<p>My grades in high school are not that good. As of now, I'm averaging a 2.7 heading towards the end of my junior year. I was wondering if I went to community college for two years, and then applied to a school in the UK such as Oxbridge, KCL, or UCL what my chances would be? Would they disregard my poor high school record and focus in on my grades in community college?</p>