Silver City is a 2004 political comedy (more on this genre and era below) that shockingly failed to smash movie attendance records, possibly because it turns into a weird murder-thriller halfway through. Poseidon is a 2006 remake of The Poseidon Adventure, directed by Wolfgang Petersen, who presumably only hired respected thespian and Jaws star Richard Dreyfuss because he wanted to fool people into thinking this version included killer sharks. (It doesn't.)
I blame the fact that it underperformed at the box office entirely on that oversight.
Dreyfuss' retirement lasted only a few years, and he has never blamed these movies in particular for getting him fed up with Hollywood. But let's look at the facts: Silver City had been out for less than a month when he said, "I want to do something else. I'll only live once, and I am 10 years out of the hospital or retirement home." It's not hard to imagine him watching the long, long 2 hours and 8 minutes this movie lasts and going, "Holy shit, I'm gonna die."