Hard to beat the start of the very first "Star Wars" movie ever released or "Jaws" or "Saving Private Ryan" or "Patton."
But I'll nominate Francis Ford Coppola starting off "Apocalypse Now" with Jim Morrison of The Doors singing, "This is the end....." while the jungle goes up in napalm flames or Sergio Leone's very cinematic, yet so understated, train station set beginning for "Once Upon a Time in the West" or Alfred Hitchcock's rooftop chase in "Vertigo" or the shots of New York City in either Woody Allen's "Manhattan" or Robert Wise's "West Side Story" or John Travolta styling down the street to The Bee Gees' "Staying Alive" in "Saturday Night Fever" or Robert Altman's very, very long lasting tracking shot that kicks off "The Player" or Werner Hertzog's steep mountain path descent (into the very depths of Amazonian Hell, as it turns out) which opens "Aguirre: The Wrath of God" or Stanley Kubrick's dramatic sunrise as seen from space, accompanied by "Thus Spake Zarathustra," from "2001: A Space Odyssey" or John Wayne initially returning home in John Ford's "The Searchers" or Martin Scorsese brutally beginning "Goodfellas" with a knife/gun murder of a reviving victim in a car trunk while Ray Liotta narrates: "As far back as I can remember, I always wanted to be a gangster."
I also always dug the opening scene of "Gone With The Wind" wherein the slaves out in the field argue over who amongst them has the authority to call out, "Quitting time!!"
Others?
There are so many from which to choose.
But I'll nominate Francis Ford Coppola starting off "Apocalypse Now" with Jim Morrison of The Doors singing, "This is the end....." while the jungle goes up in napalm flames or Sergio Leone's very cinematic, yet so understated, train station set beginning for "Once Upon a Time in the West" or Alfred Hitchcock's rooftop chase in "Vertigo" or the shots of New York City in either Woody Allen's "Manhattan" or Robert Wise's "West Side Story" or John Travolta styling down the street to The Bee Gees' "Staying Alive" in "Saturday Night Fever" or Robert Altman's very, very long lasting tracking shot that kicks off "The Player" or Werner Hertzog's steep mountain path descent (into the very depths of Amazonian Hell, as it turns out) which opens "Aguirre: The Wrath of God" or Stanley Kubrick's dramatic sunrise as seen from space, accompanied by "Thus Spake Zarathustra," from "2001: A Space Odyssey" or John Wayne initially returning home in John Ford's "The Searchers" or Martin Scorsese brutally beginning "Goodfellas" with a knife/gun murder of a reviving victim in a car trunk while Ray Liotta narrates: "As far back as I can remember, I always wanted to be a gangster."
I also always dug the opening scene of "Gone With The Wind" wherein the slaves out in the field argue over who amongst them has the authority to call out, "Quitting time!!"
Others?
There are so many from which to choose.