Ben Hur, no doubt there the story is magnificent and the sets and photogrophy of the movie is breathtaking, and the i always look forward for the Chariot race :D
Spinal Tap. No matter how many times I watch it, its still funny. Sometimes I even notice new funny stuff that gets buried in the diologue when they are all speaking at the same time (most of the movie was improvised, so it actually feels like a real documentary)
dirty dancin, grease, the notebook (althought i wud be emotionally drained if i watched this ova n ova!), edward scissorhand, the little mermaid!i cud go on,,,,
Would have to be a three way tie between Taxi Driver, Pulp Fiction and American Beauty. All three films are well-scripted, consistently intriguing (from both plot and storyline perspectives) and portray the struggles, actions and motives of their characters thoughtfully and thoroughly.
Star Wars Episode 4. I've watched it at least 150 times. I saw it for the first time in the theater when I was 11, and I was totally blown away. I've seen it in the theater at least 30 times.
I love the film Dune. Its a little old, so the special effects are a tad on the cheesy side.....but watching it makes me think of the books and I've read those like 12 times already......I absolutely adore it...hee hee, you could probably tell...
Dragon: The Bruce Lee Story. I implore everyone to see this film, and no it isn't considered a solely 'martial arts film'. It delves into the life of a man who is forced to enter a society that immediately alienates him.