Sadly, the reason for Segal Sensei's aikido looking so rough on the big screen is that root of all evil - money
. Film directors think that to sell a film it has to be violent. They have complete control of the content of their productions, so stuntman union members get to be his uke rather than true aikidoka. As a result, stuntmen that don't know how to go with the flow often get themselves hurt
, and the general public gets some misconceptions about aikido.