I had forgotten about somethng I use, a useful little utility called "delayexec" see link for more details.
http://rjlsoftware.com/software/utility/delayexec/
You could use this in place of your TT command line you set up in the set-up screen.
More generally....
In the XML file that defines the screen for movies there is a line <EXE></EXE> you can put your call to delay exec in there. When this entry is blank I believe that whatever DVD player you specified in the xlobby setup will be called instead. In your case TT. This overides this.
This can also be done thru, the skin editor. Select the movie category on your movies screen with the mouse. Goto to TAB with category settings on it. anf enter the command line for delayexec in there.
This is how you can completly control what is used to "play" any database object.
Complex to read,simpler to do!