Star Wars, all 6 films
The Godfather trilogy
Mask, with Eric Stoltz and Cher, one of my all time great films. (Absolutely not to be confused with The Mask, the comedy.)
Lord of The Rings.
The whole Star Trek caboodle, variable though it is.
The Blues Brothers.
Many Westerns, too numerous to mention but including Shenandoah, Winchester '73, Shane, The Man who Shot Liberty Valance, and many more.
Dances with Wolves.
A River Runs Through It.
The Matrix Trilogy
Elizabeth The Golden Age
Made in Dagenham
The Boat That Rocked, for wit, music and sheer nostalgia...and Bill Nighy, which takes us smoothly on to Pirates of the Caribbean
and of course The Titfield Thunderbolt and all things Ealing Studios, Passport to Pimlico, The Maggie and especially anything with Alisatair Sim and/or Alec Guiness.
I could go on for ever... :)