How do you open the disc player on a laptop?

depending on if your laptop has a DVD format drive (drive E:) (probably will if it is anything newer than a 2000 Pentium 2) then you just insert the disk, go to my computer, double click the Drive E: file and the movie should come up, however, if auto-play is embedded into your computer, then you won't even have to go to My Computer. You just insert the disc and wait.