There is definatly something operating system related or video issues.
But from my experiance from many years. Anytime you open a file and there is any issue......
It's a codec issue or a program loading the file issue.
IE = the program uses the codec to load the file.
1: So the way to find out is see if the movie even PLAYS! in VLC or Windows Media Player.
If it plays and things are fine then you have the codec decoder.
To encode you need the encoder.
2: Play it first ,if it plays then you can load it.
3: Many pirated fake movies out there now have Embeded trogan crap with links etc..
That might be the main issue right there.
4: Movies with strange embeded root kits etc.. can also give that effect.
Run a spyware program and antivirus to make sure it's not that.
5: The only other problem in the world that I know of is a strange one

and it's called the person that downloads the program and has power issues causing data coruption or download coruption to the file it's self = This will cause adverse effects of program operation. That's why allot of pirated version now use MD5 or PAR files to check agaisnt the program or RARs to make sure it's legit and not corrupt as a whole.
I have seen any program that is in memory get really messed up if there is a power problem.
I have also seen corupt downloads do this very same thing.
So SFV-MD5-SH1-PAR <-these files can check the program if you can get a downlaod providing any of these or even a hash check.
1 last note:
A movie beleive it or not can have codec coruption in it and can be completely wacked out!
usally the end or the begining of the video file gets smoked and that can cause crashing.
But you would know this if it could not be played in a Video Player such as VLC.
The Only untold things is this:
There are videos encrypted or protected ,and need a special player to play this type of file ,and the video won't play or load in anything else other then that special player. There are special programs that can only view these video files and open them ,becasue they are created by a special codec programed only to view the file and play it. Only within this specialy programmed video players it's self can it be played.
That type of specialy encoded video is gonna be the nasty one.
There is a program called mediainfo that can give you detials of the video

The Free Media Info
http://mediainfo.sourceforge.net/en/DownloadThe Free VLC player
http://www.videolan.org/vlc/The Free Antivirus
http://www.avast.com/eng/avast_4_home.htmlThe Free Antispyware
http://www.safer-networking.org/en/index.htmlVideo Inspector To Get the Codec you need and see what the video needs.
http://www.kcsoftwares.com/index.php?downloadCodecs Can be obtained here
http://codecsdb.com/I hope this information has helped. Good Luck My Friend.