I used the pumpkin video with my grade 3, 4 afterschool. I had the lowest level child be the director and let the other kids choose which pumpkin they wanted to be. We watched the video twice and they verbally told me how to write the "script" on the board the second time (with pauses between each pumpkin). We went over the script together. Then I let them practice for 5 minutes before having them act it out. One of the kids wanted to change a verb to 'play the piano' and I let them.
It actually went very well. The kids enjoyed it and I added in a few more things (can you swim WITH SHARKS?!!).
I think either video would be good to make a skit out of.