Comment 8 for bug 900501

this happens for me with videos as well, .avi from a "KODAK EASYSHARE C183", and also with videos created from video editors.
The only problem with using Shotwell to change the video date is that i don't think it saves to the file, so it is still incorrect when viewed in another application/OS.
One possible fix to this problem in general is to use the file modification time as a fallback, this would resolve the issue for me. This is already reported as a possible fix for images at http://redmine.yorba.org/issues/3300 I think it should go for videos as well (as a default off option of course) I will post at that bug.
In Windows Explorer/Live Photo Gallery, the date column automatically uses the modification date as a backup as well.