Corrected entry: In the last scene, the family is sitting in a cafe, and the oldest son says the news of the trial was even on CNN. Assuming he invented his windshield wiper in 1967, and the movie's timeline progressed 12 years, that would have put the date of the trial at 1979. CNN was founded in 1980, thus, it wouldn't have been around for at least another year.
Flash of Genius (2008)
1 corrected entry
Directed by: Marc Abraham
Starring: Greg Kinnear, Lauren Graham, Alan Alda, Tim Eddis
Factual error: In an early scene set in a Catholic church, none of the women or girls are wearing hats or veils. In the 60s, Catholic women and girls would not enter church without a head covering.
Correction: The key words you used are "assuming he invented the windshield wiper in 1967." Well, how about assuming he invented the windshield wiper in 1968? That would put it in 1980.