Doctor Miquel Porter recent death (1930-2004) constitutes the ocassion to review his whole work either as an University Professor or as a Cinema¿s History researcher. But Porter was also active on some other cultural and political opposition movements during the Francoist Dictatorship and after 1975 during the democratic Transtion. Doctor Palmira González¿s obituary article stablishes the political and social meaning of this entire biographie.