i have the same problem with this: After Effects error: file 'file name.mov' cannot be imported - this 'MooV file is damaged or unsupported.
But really dont know much of after effects so the first thing what are third-party components?
Begin by giving us more information. Please provide answers to the questions listed here: "FAQ: What information should I provide when asking a question on this forum?"
Be sure to tell us where the .mov file came from and what codec it uses.