thank you! im glad you enjoyed it :]
to get other endings, you can 1. watch the other movie, which will cause you to leave the motel room and you can get two other endings by selecting different dialogue prompts. or 2. leave the motel room, where you can get two other endings by selecting different dialogue prompts with cecil, if i recall correctly. i know some people have had trouble with leaving the motel room i think; you're supposed to put your mouse at the bottom of the screen to find the hotspot label that allows you to click it and leave.
very sorry about the glitch. im pretty sure ive come across a similar one, or even the same one, so im not sure why it wasn't fixed. i know why it happens but damn thats annoying. i should probably fix it eventually, but its not game-breaking, just very disorienting as you said.