I got a couple
Black Lips, The King Khan and BBQ Show, and The Hives, who judging by that last record should maybe only be seen live now (though the covers EP they did this summer was something of a return to form), same to Black Lips sorta.

My Humps
Is mostly a ripoff of I Need A Freak by Sexual Harassment:

There's Funky Winkerbean, over here Funky!

Scott Pilgrim
Mostly for the Beck penned Sex Bob-omb tracks "We are Sex Bob-Omb" and "Threshold" , one of the only movies where the fake bands sound like real bands, 'cause they are.

Drunk Commentary
You mentioned this one in the 'The 15 People You Meet Listening To DVD Audio Commentaries' inventory. But Trey Parker and Matt Stone's commentary with their old pre-fame buddies is pretty rad,.As they take shots it goes from "we were young and stupid" to "I forgot how sweet this movie was, lets go to…

I'm not even sure what he meant by "I put the pussy in a sarcophagus".

This is a piece of hip-hop
Has anybody done anything this ambitious with the genre yet? I think Kanye's on some next level shit and I'm excited about it.

My So Called Life
Angela as a nerdy girl from the 50s. That show had two holiday episodes with actual ghosts in them.

Liam Neeson saved a whole mess of Jews
so it looks like they've learned their lesson.

nice other answers

Bender Bending Rodriguez
and Alanzo from Training Day

.
..the fuck did i just watch?

What ever happened
to the Bradleys pilot Fox Ordered from Peter Bagge?

Awkward Family Photos
is the poor mans Sexy People

I don't wanna talk to a scientist
Y'all motherfuckers lyin' and gettin' me pissed.

If you can list that many sources of inspiration is it still stealing?
Where's the line? What makes one thing "stealing" or "ripping-off" and another an "homage" or a "reference", or a "pastiche"? This flick is not great but I feel like it could easily be an entry in My Year of Flops or hell, possibly even The New…

Spoon
"we make out to 'Some Weird Sin'" in The way we get by.

Coming to America/ Trading Places
These days I could talk your ear off about Eddie Murphy or John Landis, but when I saw these as a kid I didn't know what the fuss was about. All it really took was the second viewing. SEXUAL CHOCOLATE!!! (drops mic)

Went to some big event in Chicago for this movie.
It was all Baby Boomers patting each other on the back.

I alredy mentioned this
But Ed Norton's character reminds me of Bob Odenkirk in 3 times 1 minus 1.