Randy Maniloff's article on Bridge of Spies in Coverage Opinions is way better than mine. Of course, Maniloff is addressing the actual facts -- James Donovan, the person on whom the Tom Hanks character was based in the movie, argued in court that a multi-vehicle accident is one occurrence. Tom Hanks argued in a bar that plaintiffs' counsel should accept a low settlement offer because of that then-undetermined question of law.
(Maniloff doesn't mention it, but Donovan also argued in court that the Russian spy he defended should not be executed because the spy might be useful in a trade if the USSR ever captured an American spy. In the movie Tom Hanks argued it as an ex parte communication in the judge's living room.)