> about science by a population of people who probably mostly failed high school science

Your assumption that actors (and writers, those where the ones “preaching” more than the people on screen) have failed highschool at a higher rate than the general population is, I think, rather flawed¹. There are some very bright people in the entertainment industries for one reason or another (doing what they enjoy, and presumably are good at, instead of something else they are good at, being a common situation, there being more money in stardom being another).

Hence a number successful stand-ups who have degrees (in the sciences, not necessarily “media studies” before someone pipe up with that), PhDs, law certifications, and such.

Hedy Lamarr is the best known poster child for this, but too many think she is a singleton exception rather than an indicator that we shouldn't make too many assumptions about what acting talent might imply about other mental abilities.

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[1] And, in fact, more snobby than the film you are critiquing as being snobby!