17) Harrison Ford - Jurassic Park

Harrison Ford reportedly turned the role of Dr. Alan Grant down, citing that the film was too focused on the dinosaurs, which weren't as interesting at the time for him. This made paleontologist Dr Alan Grant fall into the acting lap of the film star who has forever been etched into most minds, Sam Neill. Ford had already proven himself as a significant star due to his work on Indiana Jones and Star Wars. Jurassic Park would indeed become one of the highest-grossing films of all time, but Ford continued to be successful with hits such as these, ensuring a place for himself among Hollywood's greatest leading men.
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