11. This Is Spinal Tap (1984)
Why It's Rewatchable: That strange feeling that, for all the exaggerated absurdity, a heavy metal might well write lyrics like "My baby fits me like a flesh tuxedo / I'd like to sink her with my pink torpedo."
If You Only Rewatch One Scene: Stonehenge descends, only there's been a cock-up in the measuring department.
10. Goodfellas (1990)
Why It's Rewatchable: "Ever since I was little, I always wanted to be a gangster." And, thanks to Goodfellas, so does everyone else.
If You Only Rewatch One Scene: May 11, 1980--the day Henry's world unravels amidst editor Thelma Schoonmaker's astonishing mosaic of fast cuts and music cues.
9. Blade Runner (1982)
Why It's Rewatchable: With five--FIVE!--versions to choose from, you could go mad deciding if Deckard is a replicantor just gawp at the visuals.
If You Only Rewatch One Scene: Rutger Hauer's Roy Batty waxes lyrical about his memories, "lost like tears in the rain."
8. The Lord Of The Rings (2001-2003)
Why It's Rewatchable: Watch all three back-to-back for an all-day epic. Longer, if you choose the extended cuts.
If You Only Rewatch One Scene: The excursion into the Mines of Moria, which made even the doubters ignore Gandalf's command that "Thou shalt not pass."
7. Back To The Future (1985)
Why It's Rewatchable: It's the absolute model for throwing everything into a film--romance, comedy, FX--and it actually working.
If You Only Rewatch One Scene: Fox's nifty moves with an improvised skateboard, all the more bittersweet in the light of the actor's subsequent battle with Parkinson's disease.
6. Airplane! (1980)
Why It's Rewatchable: No matter how many times you've seen it, you've missed a gag.
If You Only Rewatch One Scene: The near-fatal River Of Jordan singalong.
5. Raiders Of The Lost Ark (1981)
Why It's Rewatchable: George Lucas and Spielberg worked like scientists to distil the essence of 1930s matinee serials, but the real alchemy comes from Ford as Indy--quite simply cinema's greatest hero.
If You Only Rewatch One Scene: The opening sequence, which not only gets the ball rolling but works as a perfect short in its own right.
4. Pulp Fiction (1994)
Why It's Rewatchable: The whole film is a collection of iconic moments, helpfully re-arranged into non-chronological order so you don't even have to worry about the plot.
If You Only Rewatch One Scene: Travolta and Jackson saunter into cinema's classic double-acts with talk of French burgers, foot massages and Ezekiel 25:17.
3. Star Wars (1977)
Why It's Rewatchable: As kids, to memorise every last plot point to re-enact with the toys. Nowadays, because it's practically a reflex.
If You Only Rewatch One Scene: "Use the Force, Luke." Those rapid-fire moments as the Death Star nears its countdown, Vader has Skywalker in his sights and a dead Jedi's ghost is telling Luke to switch off his targeting computer.
2. Casablanca (1942)
Why It's Rewatchable: "You must remember this"if only because of the amount of dialogue you can't help but recite along with.
If You Only Rewatch One Scene: The rousing eff-you to the Nazis as the French patrons of Rick's Caf stand up for the Marseillaise.