I am using iOS 6 on IPad3. Cannot export movie trailer to camera roll, no matter the resolution chosen. Continue to get "an error occurred during export" message, but no error code is given. I need to convert this to a .mov file so it can be seen on a PC so am really stuck. Cannot export via Itunes as it won't convert it to a mov file. HELP. Seems to be a bug as I have seen it listed in different forums but no fixes.