There have been more than 70 killer whale-trainer accidents in the past few decades.  “Blackfish” spends significant time laying out Tilikum’s history but also provides examples of other dangerous – and even deadly – encounters between trainers and killer whales.  One former trainer specifically claimed there have been more than 70 incidents at SeaWorld and elsewhere.  One of the more prominent ones mentioned in “Blackfish” is the December 2009 death of Alexis Martinez, a killer whale trainer at a marine park in Spain. Martinez was killed while training with an orca reportedly on loan from SeaWorld. The movie also mentions two examples from San Diego, including a trainer who was held under water in 2006 and another who was seriously injured after a whale landed on him when it was doing a trick.  A legal brief filed by Occupational Health and Safety Administration attorneys last fall said SeaWorld records “aggressive or other unwanted whale behaviors” and documented at least 100 incidents from 1989 to 2009.  The filing noted that those episodes resulted in at least 11 injuries and some may not have been reported.  SeaWorld argued the documentary zeroed in on the total number of incidents, which it says is misleading because many didn’t result in injuries or even involve direct contact between a trainer and a whale.  The park also says the incidents were recorded precisely because they reflected behavior that was out of the ordinary. SeaWorld said trainers note those scenarios so they can monitor changes and, if necessary, adjust trainers’ approaches to a specific whale.  “It is this careful attention to the behavior of all of our whales that has led to our exemplary safety record,” SeaWorld said in a statement. “Trainers have learned a great deal about killer whale behavior from studying these examples and a result, the number of incidents has greatly reduced over time.”  OSHA disputed the latter point in its September court filing.  “SeaWorld claims the frequency of such incidents has tapered off over time but there have been incidents every year but two since 1988, culminating in trainer deaths in 2009 and 2010,” attorneys wrote.