First of all hi viv' and welcome to the Linux community
What Linux distro do you have? A distro is short for 'distribution'. As you might or might not already know Linux is like Lego. Everyone can use these stand alone bricks to make up an operation system. This means that there are over 400 Linux distro's out there! What do you have? Ubuntu, Novell SuSE, Red Hat, the ASUS Eee pc distro, etc?
If we know what distro you have then we can help you with getting your movie to play. Is it a file or on a DVD?
What do you want to do with Bluetooth? Sending/recieving files, using it to connect your Wii controller, get internet through Bluetooth, etc?