The film has two interpretations, a literal and a metaphoric one. Sticking only to the literal reading is a mistake since the film loses all of its sense.
The relationship between Oscar and Gloria represents this sort of toxic relationships where women are sick and want to leave but men won't allow it. That's literally what happens when Gloria wants to leave but Oscar tries to intimidate and threat her. Basically, if she leaves, he'll hurt people from Seoul. The film is a portrait of that kind of relationships where violence reigns at night and then it's all apologies and presents to make peace in the morning. At one point of the film, Oscar brings some furniture as an apology for the argument they had the previous night, which is a clear representation of that toxic behavior.
The ending, represents the liberation of a woman who manages to finally leave the psychological abuser behind. Colossal is an excuse, in the noble sense of the word, to expose Vigalondo's feminist vision of life and human relationships.
Nacho Vigalondo, as a joke, referred to the film as a new version of Godzilla and people took it too seriously, he even got sued for it. The message of Colossal goes much further than a Kaiju movie. It is definitely not a Kaiju film.
The relationship between Oscar and Gloria represents this sort of toxic relationships where women are sick and want to leave but men won't allow it. That's literally what happens when Gloria wants to leave but Oscar tries to intimidate and threat her. Basically, if she leaves, he'll hurt people from Seoul. The film is a portrait of that kind of relationships where violence reigns at night and then it's all apologies and presents to make peace in the morning. At one point of the film, Oscar brings some furniture as an apology for the argument they had the previous night, which is a clear representation of that toxic behavior.
The ending, represents the liberation of a woman who manages to finally leave the psychological abuser behind. Colossal is an excuse, in the noble sense of the word, to expose Vigalondo's feminist vision of life and human relationships.
Nacho Vigalondo, as a joke, referred to the film as a new version of Godzilla and people took it too seriously, he even got sued for it. The message of Colossal goes much further than a Kaiju movie. It is definitely not a Kaiju film.