I don't remember any discussion of wget vs. curl in the movie and couldn't find anything specific to the movie about that on Google; I'm guessing that the the OP just decided to use wget instead of curl because that was what they were using in the movie. (If I'm wrong, somebody please correct me.)

Here is a comparison of wget and curl that was posted on Hacker News a little over two years ago: http://news.ycombinator.com/item?id=1241479