Gravitational force

Yesterday, I saw the latest release of X men(X men first class). I had a doubt for a long time regarding the powers in the x men especially the powers that someone who lifts objects without any contact. Well, this can be real in the practical world. Theoretically we know that each and every body on the earth posses gravitational force between every other object. Is that force is concentrated to such an extent that it gets highly intensified and can get control of other objects without in contact with them. Just like the way, when we keep a bit of paper under the sun we dont get any effect over the paper while when we keep a magnifying glass in the path of the rays, we get the paper is burnt because the scattered rays are brought to gather in a constructive interference which increases the intensity but not the magnitude as it is not generating any new rays from the glass. Why can't we put in the same principle for this too so that we can concentrate it and move and gain access with out contact!!