DVD Movies don't work or crash
If you open DVD with DVD selection, try with No DVD menus option (aka dvdsimple).
Some new DVD movies use copy protection mechanisms that VLC doesn't support.It might help if you rip that movie to hard drive using tools like DVDFab Decrypter or AnyDVD and use VLC to playback these files from hard drive.
You may also be able to play these copy protected DVDs by opening the movie initialization file directly. Use the Open File function in VLC and navigate to the VIDEO_TS directory on the DVD, then open the VIDEO_TS.IFO file. Some of the newest copy protection schemes have been found to use tricks that confuse many of the current DVD software programs so they cannot locate this file properly to initiate playback on their own. This method has been found to work with some of the newest DVDs that won't open properly in VLC 1.1.11 using the standard approaches.