Shawshank Redemption
As good as it gets (Carol the waitress , meet Simon the fag)
Saving Private Ryan
Magnificent Seven
LoTR - The Two Towers
Many others could easily make the list and probs will change my mind as I think of others too but I would always make an effort to watch these 5 if they are on.
Local Hero (I'll make an excellent Gordon, Gordon.)
Gregory's girl (Go away you small boy!)
Withnail & I (GETINTHEBACKOFTHEVAN!!)
This Is Spinal Tap (Currently residing in the "Where are they now file")
National Lampoons Vacation (The Wagon Queen Family Truckster. You think you hate it now, but wait till you drive it.)
The Great Escape (cast alone was fantastic)
The original Star Wars trilogy (well it was one story wasnt it )
Die Hard Series
Terminator 1&2 (3 was stretching it a little never mind 4.)
Rocky, Original film was very moody and got the neck hairs standing on end, well worth the nominations it received.
I will now give the definitive list, no arguments please.
Pulp Fiction (needs to be viewed several times to appreciate fully, but a masterclass in intelligent film making). Alien Greatest horror ever. Sequels were not a patch on the original. Aliens threw out all the suspense and was just an action flick. Lawrence of ArabiaEpic. Don't make movies like this anymore. Literally. If it was remade it would be all cgi. Great acting. Life of Brian Need I say more. Funniest film ever. Schindler's List Everyone should watch this. Powerful, frightening.
The Longest Day, Battle Of Britain, The Dambusters, 633 Squadren. All of that kinda stuff. Not because of it's jingoism, patriotic nature, or for gloating. But because of how these events were portrayed cinematographically. Especially when compared to other favourite films like Platoon and Black Hawk Down. Or even Saving Private Ryan. The contrast in how these terrible events are portrayed couldn't be further apart.
Other films.
Flash Gordon
Barbarella!!
Tommy Boy
St Elmo's Fire
I never know whether to count trilogys as three films or one. If counting them as one then I would probably go with;
The Lord of the Rings Trilogy.
Star Wars Trilogy. (Originals, not the remakes and not the prequels.)
The Matrix.
The Shawshank Redemption.
Terminator 2: Judgement Day.
For sheer fun, Life of Brian (may be apocryphal, but 'Always look on the bright side' was supposedly sung on the deck of a bombed ship in the Falklands while awaiting rescue). Johnny Dangerously
Undercover Blues
Blues Brothers (the first one)
Aliens
Schindlers List
Bridge on the River Kwai
We Were Soldiers/Saving Private Ryan - these two for the same reason, the leads forgot about who they were and played the part