For most of that video, all you have to do is add photo stills to the storyline. You can set how long each image will last in Preferences, or import them all, select them all, double click on the play clock and type in the length of time you want each to occupy.
At the beginning, all the individual Reuter's photographers, that can be done with a combination of Motion and an application that can make each photo "layer" a frame (like Photoshop) Once the images are "compiled" into a .mov file, it can be imported into Motion and a Replicator used to display all the frames.
[Add a Camera]
Replicator settings would be something like:
Shape: Rectangle
Arrangement: Tile fill
Size: <drag out the control points to align the images within the frame
Columns: 13
Rows: 6 [this is for the example in the video you linked... 13x6 images]
Origin: Upper Left <any corner that will allow the Build Style to be used>
Build Style: By Row
Check Shuffle Order [this makes the animation more "random looking" rather than sequential by build style]
Check 3D
You will need to uncheck Play Frames and set the Source Frame Offset to 1
Add 2 Sequence Replicator behaviors -- set their lengths for a second or so and place the 2nd one out further into the timeline [it's "in point" a couple of seconds or so past the out point of the 1st sequence replicator]
For the 1st sequence replicator:
Add Position
turn down the disclosure tirangle and adjust Z to approximately 5000
set Sequencing to From
Unit Size Custom
Start 0
End 100
Spread -- optional -- but start around 75
Traversal Constant
For the 2nd sequence replicator
basically the same as the 1st except:
Z -5000
Sequencing To
Set the Camera to Fade Out the end of the animation (far plane and far fade settings)
place an out point for the replicator at the same frame as the end of the 2nd Sequence replicator behavior.
That should get you pretty close to portrait wall animation.