How to show "invisible" extra bleed/margin on the four sides of imported image?

Not sure if you or anyone else will need this anymore but if you have ProEXR downloaded go to your After Effects prefs text file (C:\Users\username\AppData\Roaming\Adobe\After Effects\Your AE version) and change the values in the OpenEXR section to the following:

["OpenEXR"]
"Automatically show displayWindow dialog" = "1"
"Channel Cache Expiration" = "30"
"Channel Cache Strategy" = "0"
"Channel Caches Number" = "10"
"Enable displayWindow Dialog" = "1"
"File Menu Item" = "1"
"Memory Map" = "0"
"Store Machine Info" = "0"
"Store Personal Info" = "0"
"displayWindow Default" = "0"

Now whenever you import an EXR that's been overscanned it'll ask you whether or not you'd like to display the "hidden" pixels.

It is possible to get the extra pixels in AE, but you have to do some work. See this blog post:

http://fnordware.blogspot.com/2013/12/proexr-19-beta.html

View boxes in EXR files? If that's what you mean, then there's no way to make stuff outside the view box visible in AE. AE only deals with actual visible data that has valid pixel values.

Mylenium