A few weeks ago, I went to Kansas City with my Dad to attend a Promise Keeper's rally. During the event, they showed a long video clip that talked about Discipleship and pretty much gave the true context for how Jesus called his disciples and why they could so quickly dropped everything they were doing and followed Him. It was an incredibly fascinating video, very well made. At the end, we found out it was from Nooma.com. They have several videos available to view online. You can also buy the videos to use in your ministry or for personal use. I recommend going and checking out some of the videos when you have 20 minutes of spare time...it's great stuff.
The video they showed at PK was "DUST".