I was going to try asking Christian this but in the hope it helps someone else - here it is.
I am basically extracting some frames from a movie and am using the monkeybread plugins.
Oddly enough when I use the following code
Dim f as FolderItem = GetOpenFolderItem(FileTypes1.Movie)
Dim m as Movie = f.OpenAsMovie
Dim e as new QTFrameExtractorMBS(m)
Its pretty late here is Australia so I am hoping I have missed something simple but I get a nil object on the last line.
The code is almost exactly the same as the examples given here
and I am lost as to why it would be nil when I can play the movie in movie player.
The file is a .mov and I am using quicktime.