There was an old youtube video where the premise was that it was a trailer for a movie by a kid with cancer, who had told the Make a Wish foundation they always wanted to make a movie.
The movie was named something like "The Boy Who Beat Cancer and Got Everything He Ever Wanted." The trailer starts by showing a doctor walking in saying "good news, my chart was wrong, you don't have cancer after all." There's a montage of just great stuff happening to him, and the basic joke is that the whole movie is wish-fulfillment while the trailer-narrator talks about how many accolades its won. There was a joke where it said "famous film critic] called it 'a terrible film.'" [Another famous film critic] called [famous film critic] 'an asshole who hates sick children.'"
It ends by showing the kid and saying "all proceeds go to the Travis memorial fund."
It's not this video, but I keep finding it when I look:
https://www.youtube.com/watch?v=I2OObOM3R_U