It's so hard to choose just one. I love the movie since I watched for the first time in the movie theatre.
The chase is one, but Natalie waiting in the car and then come back to the house where Leonard is looking for a pen before he forget what just happened...one of the best scene in movie history.

I miss that. But I watched Following recently for the first time and the first thing that cross my mine when i saw the batman logo was...Destiny. Maybe he knows something that we dont.