Roy Scheider should have been a major movie star
Outside of "Blue Thunder" this was his first hit in many, many years.
1. Klute.
2. The Seven-Ups.
3. Jaws.
4. Marathon Man.
5. All That Jazz. [Oscar nominee for best actor]
Not a bad record to go into the next decade.
But he became a flash in the pan following the 2010 and was never able to equal the success of his fellow actors from the generation before.
Maybe walking out of a contract [The Deer Hunter] or wrestling the director to the ground in a hotel room [Jaws 2] he was labeled "difficult" and according to William Friedkin while filming Sorcerer very difficult.
Then while being on a Hollywood blacklist for 10 years [and a string of box office flops] he went into television and got another big chance again with Steven Spielberg.
He famously told reporters the series that he starred in flat out sucks.
https://ew.com/article/2006/05/23/why-roy-scheider-deserves-his-tough-guy-props/
And then he died and now's he just that guy in Jaws.