http://www.slcdunk.com/2011/1/27/1959457/the-floppingest-floppers-that-ever-did-flop This is pretty classic stuff.
It looks like Manu stepped on Bell's foot so I could see that maybe he went down fearing an ankle injury. Bell just flat out flopped.
Reminds me of that video of the soccer player and soccer coach who both flop when there's just a tiny bit of contact.
That is why I call him Manu Ginoseli! Because he always uses his big ass nose to get fouls called on opponents.