To reveal where a footage
item is used in a composition, right-click (Windows) or Control-click
(Mac OS) the footage item in the Project panel and choose Reveal
In Composition; then select the specific instance you want to reveal (composition
name, layer name).
To
reveal a layer’s source footage item in the Project panel, right-click (Windows)
or Control-click (Mac OS) the layer in the Timeline panel,
and then choose Reveal Layer Source In Project.
To reveal a footage item’s location in Adobe Bridge,
Windows Explorer, or the Finder, right-click (Windows) or Control-click
(Mac OS) the footage item in the Project panel and choose
Reveal In Bridge, Reveal In Windows Explorer, or Reveal In Finder.