I've just made this modest applescript for shaking via command line a bunch of qt movies, not elegant but works.
Someone may find it usefull.
CODE
on open fileList
(* the path for saving the rendered files *)
set savePath to "/Saving/Path/"
(* the path for making a batch shell script *)
set scriptsPath to "~/"
set scriptName to "queue"
set scriptPath to scriptsPath & scriptName
(* create and errase the batch list in case is not blank *)
do shell script "touch " & scriptPath
do shell script "echo \"\"" & " > " & scriptPath
do shell script "chmod u+rwx " & scriptPath
repeat with aFile in fileList