MKV file/ Wolverine

I just downloaded Wolverine and its split up in 4 mkv-files. I can only watch the first file, the other ones dont open, what could be the problem? I’m using VLC-player and Mplayer and neither can open the second, third or fourth file.
please help, thanks in advance mathieu
Answer #1
Source of this?
First time I ever heard of someone splitting a movie in 4 mkv files.
Answer #2
http://www.google.com?t=2639950&highlight=
Answer #3
Join them with HJSplit.
Answer #4
thanks!