Roberto,
I like where you’re going with this but i’d like to add a couple suggestions if i may.
First off, i agree with there being more organization or structure to the challenges. Although, not exactly how its been suggested. I think we need to try and replicate what would be given to the FX artist and what would be expected from him/her and then try and mimic the workflow to completion.
I think that for this to truly be FXWars we need to be learning/generating FX. The superpowers challenge was very close to what, in my opinion, the process should be. We are given story & story boards, background plates and maybe even the camera tracked version of the scene (available in all the major formats) and then we do our best to generate the effect. This in my opinion puts the focus where it should be…the FX.
I think its an amazing idea to go back and pick effects that have been done in past movies…it allows us to have a really strong point of reference as well as level of quality to strive for. It also gives ample information as far as context on how that effect fits into the story/movie. I think that we should pick effects, lots of good ones were suggested, and then replicate their scenes in different, but similar, locations if possible. Maybe not ending up identical but would still look fine if plopped into the movie. Part of this process would be, as you mentioned, to discuss how the effect was accomplished in the original movie. This part would be extremely beneficial when considering how to actually try and replicate the effect.
For me, what i would like to get out of the FXWars is education and enjoyment. I would like to learn how a special effects artist does their job, from their side of things as well as what is provided and asked of them by those recquiring the special effects. This should be where the organization or structure of the challenges comes in. The enjoyment would come from applying the knowledge and creating a shot that could end up being extremely cool for demo purposes or just to show your friends or whatever.
Keep up the good work!