Technique is the way in which an artist creates a work of art, using the media he/she decides to use. The technique and media the artist uses will change the finished results, and the messages and/or feelings it conveys to the viewer.
Grunge is like hard rock and punk, although I'm not a fan. Oasis is more along the lines of "Britpop" or rock, but I wouldn't say grunge. Oasis would be your best pick for the second half of your question.
<em>Disagree</em>
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<em>The movie was designed to entertain audiences while making ties to reality to help audiences relate to what the characters are struggling with throughout the film. It does, however, have a common theme of rebellion and topics such as "the struggle against oppression" are brushed upon, but ultimately those troupes tie in with the story. The film is not propaganda for war </em>
