Charlie and the Chocolate Factory

Alright, can someone tell me what's up with the choreography here? I get the part where the oompa loompa is dancing around the nut sorter drain and I have to say he has great hippie free-love dance arms. I am like SO impressed with that. (I will practice my arms later today.) Kudos to Mr. Oompa Loompa and the choreographer, but what's with the rest of the dance moves in this movie?