Creator Backlash: Hismoniker. As of the Mister Lonely review, he's dropped it from the title sequence and goes by just his real name.
Eloquent In My Native Tongue: He admits that he's not all that skilled with Dutch, although he has some knowledge; he spent part of his childhood in the Netherlands and even went to an international school there.
His review of Nightwatching/Rembrandt's J'accuse opens with him addressing the viewer in Dutch, until the cameraman (actually his brother) cuts him off complaining about his terrible accent.
Missing Episode: The sans-commentary version of "The Girlfriend Experience" (which he felt completely misrepresented him) and "What Is It?" which got removed after Crispin Glover took umbrage at its existence.
Old Shame: He took down "The Girlfriend Experience" because of how badly he felt he executed the review.
One of Us: Oancitizen explained in the commentary for Ken Park that he actually uses TV Tropes for research and to identify new movies to review. He identifies many tropes and articles by name, and links to this very wiki on Twitter/Formspring. That is right Kyle. We know you are reading this.
Red String of Fate: Kyle and his artist discovered only AFTER they agreed to work together that his artist lives only 4 blocks from him. They've since become not just coworkers but inseparable best friends, to the point of people thinking they're dating or even joking that they're married.
Kallgren stated that, at one point, he thought of being an actor.
During the break between Melancholia and Mister Lonely, Kyle suggested a temporary series where he would rewatch the films he reviewed early on and recap them with a new perspective. He eventually discarded that for a new Between the Lines.
There was going to be a joke in the Mister Lonely review involving the scene in Grizzly Man where Werner Herzog listens to the recording of Timothy Treadwell being eaten, only with the audio replaced. Kyle ended up cutting the gag out.