This is the trouble with a lot of the films @Dos_Box look at the old westerns or films from the 40's - late 80's, they were all story line based and yes some had special effects, but were limited due to the technology of the day. Look now and it seems special effects based with story coming second...a good example is transformers, it seems like they crammed the entire original cartoons into 3 films and missed a tonne of the story!
Originally Posted by nephilim
G'day Zak. I think the 2006 reworking of Casino Royale with Daniel Craig is very good.
Originally Posted by FN-GM
There is always the 80s "Classics"
-St Emlo's Fire.
but the only movie I can ever remember watching pre 1990s at the cinema was the Little Mermaid.
Labyrinth is an awesome movie, as someone mentioned about.
There is also an old black and white movie I like, but only seen once which has a Soldier who is injured during a war (probably ww2) and is paralysed and can only communicate through the twitching on his neck.
The orignal casino royal wasn't very good. It wa made by other production company. Personally I like the Rodger Moore films.
The French Connection
Fiddler on The Roof
The Elephant Man
The top 250 movies on the Internet Movie Database.
You will be suprised how many are pre 1990.
The Princess Bride. 
I never miss an opportunity to watch it.
Apart from that, I think most of the other films I like have been mentioned already. Akira  is OK, but I don't really get the hype surrounding it.
Also, Jason and the Argonauts  and all films like it with their crappy special effects.
Had the pleasure of seeing that last year at the Tyneside Cinema - it was really good :)
Pump up the Volume
Edit: oo forgot - Pale Rider
Went the Day Well
Kind Hearts and Coronets
Lavender Hill Mob
Pre 1990? Old? Come on! All the best films were 80s films anyway, you're more or less asking "list the best films without including Pixar" at that point :P
Old would be pre-1960, in which case I'd have to plump for It's A Wonderful Life (as mentioned by Beeswax) and Citizen Kane, which is genuinely gripping and deserving of the reputation it has.
If I were to list all the best films before the 90s I'd be here all morning. I even had a DeLorean on my wedding cake last year!
(and I was born in 1984, so this isn't even a "back in my day" kind of thing, just that most of the all time greats really did happen two to three decades ago)
My OH and I were talking the other day about films that I have to watch whenever they are on and a lot of them have been mentioned here. So in addition I shall add to the above:
North by Northwest
Battle Of The River Plate
Lawrence Of Arabia
Das Boot (although the series was much better)
Thing is from say 1992 onwards films just gave in to special effects and lost plots for many many films (Die hard 3 being possibly the best mix of both special effects and plot since).
The trouble with many of todays films as has been previously said is that much of the story is sacrificed for special effects, if transformers wanted too, all 3 films could have been condensed into 1 film and would have been much better IMO because it follows to the cartoons in that sense, but no it had to be split. Look at films like The breakfast club, weird science, road house or footloose...all have great stories, some bits absolutely hilarious, some cringe worthy, but great films that have lasted the times, unlike say Bugs life, The mask, Minority report etc all ground breaking with the effects which have faded and rarely ever talked about now, hell even the matrix for all the hype it had is no longer looked at by many as a great film.