Be sure to impose the correct meaning

I tried to watch Michelangelo Antonioni's Blowup (1966) on Thursday night, but I wasn't impressed and kept falling asleep during it, giving up after an hour and going to bed. However, I listened to the scholarly commentary track anyway the next day at school. All I knew about Blowup when I got it from the library was that it was famous and important (but not why), it was by Antonioni, and it was about a photographer who may have inadvertently photographed a murder. I also knew that there was a film by an Italian director with a photographer whose name is the origin of the word "paparazzi." (It wasn't until friday morning that I found out I was thinking of Fellini's La Dolce Vita.) The commentator kept going on about how it was abstract filmmaking and had no meaning until the viewer imposes a meaning on it. But, I was doing just that--the meaning I imposed on it was that this photographer (who isn't named) was photographing someone famous in the park--and found the film to be quit lacking. However, when the commentator told me how to think about it--the need for opinions to be validated by another is important to the film, too--I understood it, and especially after seeing the absurd ending, I did kinda like it.