These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Reality Is Unrealistic: The storming of Omaha Beach. It's been praised, especially by WWII vets who were there, for its accuracy yet it looks very little like what movie audiences have come to expect from a big battle (except for the massive casualties).
Retroactive Recognition: A lot of the younger actors, especially Matt Damon and Vin Diesel, were not yet megastars at the time this movie came out. Matt Damon had won an Oscar (albeit for Best Screenplay), but it may yet have been a flash in the pan. Spielberg is rightfully credited as helping jump-starting Diesel's career, writing the role specifically for him after seeing Diesel in his acclaimed short film.
And also, his Oscar is for writing. Hardly a guarantee of a career as an actor.
Jeremy Davies (Cpl. Upham) is Daniel Faraday in LOST.
Nathan Filion as Private James Ryan #1 ("James Frederick Ryan, Minnesota.")