There are many ways to "capture" love.  It's what I'm hired to do as wedding videographer or filmer.  It's what wedding photographers do on every job. 

My niece was married this summer and wrote for A Practical Wedding about the thought and compromise that made her wedding so personal and so meaningful.  I had the privilege of creating a video for her, and attempting to capture the feelings of love expressed not only between her and and her husband, but among the whole community of friends and family that she brought together.  Read her post, then you can watch the video.