cRIRIc

html body {
    text-align: center;
    margin-top:35px;
    background: black url("img/matrix.gif");
}
#wrapper {
    margin: auto;
    width: 812px;
    text-align: left;
    padding: 6px;
}
.container {
    position: relative;
    color: white;
}
.container a{
    color: white;
    text-decoration: none;
}
.thumbnail span{
    position: absolute;
    padding: 5px;
    border: 1px solid gray;
    display: none;
    background-color: black;
}
.thumbnail span img{
    width: 670px;
    border-width: 0;
    padding: 2px;
}
.thumbnail:hover span,.thumbnail span.first {
    display: inline;
    top: 0;
    left: 125px;
    z-index: 2;
}
.thumbnail span.first {
    z-index: 1;
}
img.thumb {
    width:120px;
    height:86px;
    border:none;
}

<div id="wrapper">
    <div class="container">
        <a class="thumbnail" href="#">
            <img src="img/10.jpg" class="thumb"/>
            <span class="first">
                Keanu Reeves : Neo <br/>
                <img src="img/10.jpg"/>
            </span>
        </a>
        <br />
        <a class="thumbnail" href="#">
            <img src="img/12.jpg" class="thumb"/>
            <span>
                Carrie-Anne Moss: Trinity <br/>
                <img src="img/12.jpg" />
            </span>
        </a>
        <br />
        <a class="thumbnail" href="#">
            <img src="img/11.jpg" class="thumb"/>
            <span>
                Laurence Fishburne : Morpheus<br />
                <img src="img/11.jpg" />
            </span>
        </a>
        <br />
        <a class="thumbnail" href="#">
            <img src="img/07.jpg" class="thumb"/>
            <span>
                Monica Bellucci : Persephone<br />
                <img src="img/07.jpg" />
            </span>
        </a>
        <br />
        <a class="thumbnail" href="#">
            <img src="img/08.jpg" class="thumb"/>
            <span>
                Hugo Weaving: Smith<br/>
                <img src="img/08.jpg"/>
            </span>
        </a>
        <br />
        <a class="thumbnail" href="#">
            <img src="img/13.jpg" class="thumb"/>
            <span>
                Adrian e Neil Rayment <br />
                <img src="img/13.jpg" />
            </span>
        </a>
    </div>
</div>