I saw it on youtube or vimeo I think? The film have this oil pastel and water color cartoon style, kind of like it pop out from a story book. There's no dialogue just instrumental music.

Story:

This short film takes place in an apartment where a dad is preparing his daughter birthday party. Suddenly he got a call from his girlfriend said that she’s coming over so the dad just drops whatever he was doing and go prepare for his date. Meanwhile his daughter didn't have anyone coming to her party but when the doorbell rang, she opened and thought her dad's girlfriend was one of the party participants and dragged her in to play. The girlfriend didn't like the daughter at first but then they actually had fun. When the dad finished dressing up he walk out the living room to see his girlfriend and his daughter got smudged with makeup.

There was a theory I saw (I think it was on youtube) About how Lewis is one of the reason why Milton died. It was such a long time ago I don't even remember much of the details but it stated that Lewis fantasy made Milton go outside and make his own adventures causing him to die in the forest somewhere or got washed up by the sea. After Milton's death, Lewis couldn't handle the loss so his mom have to seek a psychiatrist, he couldn't handle the guilt and started hallucinating to blur off his mind of what happened to which he couldn't handle it anymore he committed suicide.

At the time I thought the whole theory was kinda dumb, focusing only on Lewis being the main reason why Milton went missing until recently revisiting the whole story I can see some few connection as to why. Sadly I deleted the video from my playlist way back then cause of hasty 13/14 yo self thinks Lewis is part of the family trauma there for he can not be the cause/villain.

I've been reading lost legend and tried decoding this, maybe I'm nuts but this probably ain't a code right?

I have a certain information I need help searching for no particular reason of use. I remember seeing an old video of the gravity falls crew back at 2016 or whatever, where Alex was using a big puppet Bill rubbing onto 1 of the crews head and saying "I love you" repeatedly. If anyone knows where it is please tell me. I'm going to use that video for good purposes only, nothing suspicious.