The MotionBoutique, creators of the Newton Physics Engine for After Effects, have posted another script for After Effects that they are sharing. The Collage Script will create a photo-book style arrangement of images from selected AE layers.
This After Effects allows you to create photobook-style arrangements of selected layers
The Collage Script for After Effects will create a new layout randomly every time you click the create button and will respect aspect rations and actually does no cropping of the layer images to create the collage. Also if layers have keyframes associated with them, particularly position or scale, the script will created new keyframes at the current time. Check out the post for the After Effects Collage Script from the MotionBoutique here.