Three from me to begin with:

Brassed Off - a peer of The Full Monty but not nearly so successful at the box-office. Funnier, grittier and plain better.

Three Colours: White - could be any of the trilogy but the other two (Red, Blue) are often cited as modern masterpieces while this one gets ignored somewhat.

Bronco Billy - my absolute favourite director is Clint Eastwood. I adore this film but I can't find anyone else who likes it, apart from the wife and she's probably just sparing my feelings!

October Sky starring Jake Gyllenhaal, Laura Dern and Chris Cooper released in 1999. This movie is based on a true story of Homer Hickman, NASA scientist, who grew up in a 1950's West Virginia Coal Mining Town but had a love of rockets and aspired to be more than a coal miner. I hadn't heard of this movie until this past weekend when it was on TV and found it to be a very good movie.

I kinda liked "Final Countdown" Its an interesting movie that makes you think about what would you do if you had a modern (late 80's modern) fully stocked aircraft carrier that somehow traveled back in time to the morning of the attack on pearl harbor. Makes you think, and its a pretty good flick.

I also liked "Undercover Blues" with Dennis Quaid and Kathleen Turner as spies.

Oh, and for the John Wayne fans, I liked "McClintock", "Hatari", and "Hellfighters".

Strange Days: Visually very interesting, great cyber punk movie that only a handful of people I know have seen. It is about a virtual reality drug in LA right before the millenium.
Nadja: A widely unknown vampire movie, in fact, I've never met anyone else who's seen it. It was produced by David Lynch and a b/w Fischer Price camera is used to film scenes from the vampire's perspective.
Cemetary Man or Dellamorte, Dellamore: Amazing Italian zombie film, funny and gruesome.
Hangmen Also Die: A film from 1942 that was made right after the assasination of Reinhard Heydrich, it details the Gestapo's search for the perpretators of the crime and those that have shielded them. It is directed by Fritz Lang, one of his lesser known films and though it is largely fictional, it is a gripping thriller.
And lastly, Mrs. Parker and the Vicious Circle, which is just a fantastic period piece, chronicling the life of writer and humorist Dorothy Parker and the infamous Algonquin Roundtable during the 1920s mostly.
I can think of many more but that would be a terribly long post!

"Mountains of the Moon" - a superb film directed in 1990 by Bob Rafaelson. It recounts the race by Richard Burton and John Speke to find the source of The Nile.

The part of movie that takes place in Africa was filmed in Kenya, and the cinematography and scenery are breathtaking. This is a film I watch over and over, and Patrick Bergin is absolutely marvelous as Richard Burton.

"Fitzcarraldo"- the 1982 Werner Herzog film, garnered many awards, but it was released in West Germany and never saw wide-spread theatrical release in the U.S. The movie was based on the true story of a Peruvian millionaire who decides to build an opera house in the heart of the Amazon, hoping to entice Enrico Caruso to sing there.

Jason Robards was slated to play the lead but dropped out, then Mick Jagger's rather significant role could not be completed due to scheduling difficulties, and filming began from scratch. The logistics of the production were unbelievable, including moving a 300 ton steamship over a hill, in the Amazon. Kinski was a notoriously difficult actor, and documentaries about the making of the film are as interesting as the film itself.

Sorry for the long post, but I love these two movies, and it's such a shae that they never earned much at the box office in the U.S.

Honorable mention goes to "Happy Accidents" starring Vincent D'Onofrio and Marisa Tomei. It's about a man from the future who comes to New York City to save the life of a woman whom he doesn't know but has fallen in love with just by seeing her in a photo. Sounds a little like "Somewhere in Time" but don't be fooled. This is a futuristic film with some very interesting, thought-provoking sub-plots. Kudos to Holland Taylor, who makes an appearance as Marisa Tomei's therapist. A real must-see IMHO.

Some of my absolute favorite performances in pretty good movies

Wit - Emma Thompson (made for tv movie)
In The Name of The Father - Emma Thompson, Daniel Day Lewis & Pete Posthelthwaite
Remains of the Day - Emma Thompson & Anthony Hopkins

I love Emma Thompson, she's also brilliant in Howards End, Angels in America (TV) and Love Actually.

Eternal Sunshine of the Spotless Mind - Kate Winslet and Jim Carrey (I usually hate Jim)

Gosford Park - everyone who is in it

The Lonely Passion of Judith Hearne - Maggie Smith
The Pride of Miss Jean Brodie - Maggie Smith

Sliding Doors - Gwyneth Paltrow & John Hannah

They are all movies I would recommend, but if you want something dark and thought provoking

Grave of the Fireflies - it's Anime but not for children, it's one of the most heartbreaking movies ever, and I would recomend that you watch with subtitles, the american overdub is not very good.

Cidade de Deus (City of God) - tremendously brutal and honest look at the favella's in Brazil.

I could easily list another hundred movies I could recommend, but one of my all time favourites is The Philladelphia Story, pitch perfect in every second with Carey Grant and Katherine Hepburn.

One of my favorite 1960's comedies is a wild satire called "The President's Analyst." The film stars James Coburn and is one of the best films he ever made.

Wonderfully satirizes the counter culture, the cold war, psychiatry, and corporate America and much more.

In response to the posts re: Australian movies (which I love) I have to nominate Strange Bedfellows, Starring Michael Caton and Paul Hogan. Two very straight and typically Australian blokes who are the best of friends decide to learn how to pass themselves off as a gay couple to take advantage of a new tax legislation. Its not distasteful, nor is it crude, add that with warm Aussie humour and its a great movie.

Another movie that had me in fits of laughter was the recent Death at a Funeral. I'd recommend it too!