I can't remember the exact details of the shirt changes but, yes, it was possible to buy all of the differently sponsored kits. The store had a constant supply of the plain dark blue away shirt and the standard Colchonero home shirt and then had a limited number for each different film. I don't believe the home shirt ever had that large Spiderman logo though, I think it was a much more generic logo.
I think UEFA banned the away-shirt Spiderman logo though, ruling it was too big, or something equally innocuous.
It was a weird season, a whole series of Hollywood 'stars' had their photos taken with Atletico shirts and their surnames embossed on the back. It didn't seem to do the team much good though, the new founds fans seemed to disappear as quickly as Cameron Diaz did from Brentford.
Ah, found the home shirt:
Kirsten Dunst (?) modelling the simple Spider logo:
Looks like Jeremie Janot took shirt number 3 straight off Richard Virenque's back.