Gif Central boasts hundreds of funny animated gifs. Only the best of the best make it onto this site, with most of them having an accompanying source. No tumblr-esque one-second-long disappointments. No obscure titles or descriptions.
This is an animated gif of Brad Pitt shouting "What's in the f*cking box?" This is from the movie Seven (1995), in which Pitt played the character Detective David Mills. Honestly, if you haven't seen this movie yet, you're missing out.