Tyler appears in the film five times before we clearly see him on the moving walkway at the airport. In the first four appearances, he flashes on screen for a single frame (1/24 of a second) and only when the Narrator has insomnia.
All the ways you wish you could be… That’s me. I look how you wanna look, I fuck like you wanna fuck. I am smart, capable and, most importantly, I’m free in all the ways you’re not. People do it every day. They talk to themselves, they see themselves as they’d like to be. They don’t have the courage you have to just run with it. Naturally you’re still wrestling with it, so sometimes, you’re still you. Other times, you still imagine you’re watching me. Little by little, you’re just letting yourself become… Tyler Durden.
“This chick Marla Singer did not have testicular cancer.”