Complex sentence: Art school culture has been portrayed in media such as "Art School Confidential" and "Six Feet Under" and may have existed in the past, however, this current portrayal could be classified as a stereotype.
Split into simpler sentences: Art school culture has been portrayed in media such as "Art School Confidential" and "Six Feet Under" and may have existed in the past. However, this current portrayal could be classified as a stereotype.