Sean Flynn, who plays Grip, is the real-life grandson of Errol Flynn.
The film's real-life character, Ronnie Shedio, was a personal assistant to Errol Flynn and also a consultant to this film's directors before his death in 2007.
The real Errol Flynn died at 50. Since the time line depicted here is 1957, when he was 49, Kevin Kline is 18 years older (or more) than Flynn would have been during the events depicted.
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