On September 3, 2004, many video game web sites had between 12 to 18
videos available that contained not only gameplay, but cinematic videos.
For fairness, I'm linking to the source's web page where the videos are
found and not to the video itself.
Breaking News (Intro)
The game begins as news breaks and the X-Men are set in the middle of
the action.
Danger Room/In the
sub-basement (featuring Beast & Magma):
Here's a look at how the dialog interaction takes place in the Danger
Room of the X-Men mansion.
Character Selection:
Gameplay footage from X-Men Legends, including a look at how players
will decide who their X-Men team will be composed of before they dive
into the action.