I would suggest to use movie player called mplayer. you can find it at
Mplayer HQ.
There you can find both source files and rpm files for Red Hat.
You might have to download the codeces you want support for, I don't know how it works with the rpm. The codeces might be included in the .rpm ??
then when everything is installed just run
or
for the graphical interface.
If gmplayer fails you might not have any skins. You can get that from the URL above.
Hope this helps.