I stand corrected! How could I have forgotten about JUNO?! I think we have a winner!
I'd go with JUNO. Most overrated flick ever.
Close call between "Pretty Woman" and "Fight Club", but since the former is the more popular -- and I really despise the message so many women take away from it -- I had to go with it.
Although I think there two movies that are even worse than "Pretty Woman". The top two movies I'd trash (because they are demonstrably horrible and yet received widespread acclaim) are "Forrest Gump" and "Good Will Hunting".