This is "Otakus" by Andrés Borghi (Kamikaze productions, argentina). This version has english subtitles. Thanks to Walt, Titiln, Plankton, Pots and Lord of the flies for the translation

This films took one year and a half to be made and the main tool for the special FX was the software Adobe After effects. This film won the award for best visual effects three times in different film festivals in Argentina.

in IMDB:
imdb.com/title/tt1114261/

kamikaze productions:
kmkz.com.ar

Making of FX:
youtube.com/watch?v=-fn3NFg6HB0

here you have the poster for the film:
borghi1.free.fr/cosas/Otakus-Poster-small.jpg