|Snatch. (2000) [Rosebud]: Impaled on his own sword in a car accident. (Thanks to Tal)
Perfume: The Story of a Murderer (2006) [Grimal]: Falls and hits his head after being knocked down by a carriage; he then rolls into the river.
Colombiana (2011) [William Woogard]: Eaten by his own sharks after Zoe Saldana shoots him in the legs and then shoots the pool cover, causing him to fall into the pool. (Thanks to ND)