Extras is a fairly old show now by Ricky Gervais where he brings on a well known actor for an episode and they end up spoofing themselves as he plays a 'extra' in a scene or two. Patrick Stewart was a guest of one of the episodes and I found this scene particular humorous as Ricky tries to push a script he wrote to Patrick.
Scene from the Show:
http://www.dailymotion.com/video/x3uir5_extras-patrick-stewart-ricky-gervai_shortfilms
This is the blooper reel from the scene:
Hope if you have not seen this before, you find some laughter in it too.