overrated does not necessarily mean bad film. And, you should see the film in the cinema before you judge it IMO.
The Carry on films would be classed as cheap rubbish in most film buff circles but they are greater than the sum of their parts.
I went to see four weddings and a funeral at the cinema when it came out and was very disappointed and thought it was very overrated, I think it was the inane laughter of the audience laughing everytime someone said "****" that did it. Now when I see it I appreciate it and would not say it is overrated. Saw Love Actually pre release and the laugh's in the audience added to it, just shows.
Films are a lot different on the big screen as well, I saw Chicago on release at the cinema when I was on holiday in Blackpool and thought it was fantastic apart from Zellwegger(agree with earlier poster), but when you see it on TV it loses something.
I went to see matrix 2 at the cinema and the abiding memory for me was the black guys spots, they were enormous on the big screen but on TV screen his complexion looks perfect.
Some films are just made for the big screen, one of my earliest memories is of a western, wish I knew what film it was, I remember a cowboy setting fire to a train carriage and then letting it off the coupling so it hit another train chasing him, I remember the panoramic views and vivid colours like it was yesterday.
Paul Merton runs a big screen festival of silent films, I would love to go and see some of those keystone kop type films on the big screen. When I was a kid in the 70's, films didn't get on TV for ages, Bond films never, I must have seen Goldfinger in the cinema about 71 or 72 many years after it's original release. You just would not get that now. If I had the money I'd open a cinema dedicated to classic films, first up. North by Northwest.