Memento
The Sammy Jenkins little “Easter egg” is phenomenal by Christopher Nolan, he made sure to let us know how all of Lenny’s past ideas of him and his wife were what Sammy Jenkins was doing all along. “The insulin” and it cuts to what was Lenny pinching his wife, is now him giving his wife her shot. Just an amazing detail in the movie. And also when it’s Sammy in his chair and cuts to Lenny in his place meaning it was Lenny all along.