From BrandWeek:

Perhaps the most unlikely star of online videos these days is Adolph Hitler, or at least an actor playing him. The joke is simple: Get a clip of from the 2004 movie Downfall, in which Bruno Ganz as Hitler throws a tantrum in German, and superimpose subtitles about the news of the day.

In the YouTube age, if Hitler is pissed at you, you know you’ve made an impact.

Amen.

For an example, here is an embedded video showing the scene of Hitler and his cohorts discussing the recent purchase of Marvel by Disney: