That's usually the first one that comes to mind for me. However, when I give it a little more thought I'd have to say that my all time favourite is Rear Window. James and Grace at their best.
Total Recall Fear and Loathing in Las Vegas Back to the Future 1 & 2 The Time Machine (original) Serenity Dumb and Dumber Planes, Trains, and Automobiles There's a lot more, too. These are just off the top of my head.
