I just finished watching Attack the Block and it was actually pretty good. I didn't think that I would like it this much before watching it , but it was great. The soundtrack is awesome too!
Trying to not give too much away, there are these alien creatures in the film that are completely pitch black except for their mouth.... I felt inspired to try to draw one.
I couldn't figure out what type of anatomy the creature had because the body is literally pitch black, but I think I got the jist of it.