a link has two parts. the a tag which contains the address to go when clicked, and the text between the a tag, the text between the a tag is what will be displayed on the page.
you link tags are being written as:
<a href="address here">address here</a>
to create a link that has the text "click here to view movie trailer", change that to:
<a href="address here">click here to view movie trailer</a>
you could image resizer to automatically resize the images.