Kevin Smith, who was actually involved in promoting Batman Vs. Superman, apparently wasn't a big fan of the movie, particularly in regards to the story and Superman.
"Remember before when we were talking about Flash, and that it has heart, humor, and spectacle. The movie I felt like didn't really have a heart. It was certainly fucking humorless, there was nothing funny going on in that world whatsoever, but it had lots of spectacle. Like you can't take that away from Snyder. Boy, he knows how to like compose a frame and how to setup a shot. Beautiful visual stylist but you need more than just the pictures, you need like characterization and these characters seemed off character, particularly Superman."
Smith is also a big Batman fan and went on to joke about Affleck's portrayal comparing Bruce Wayne and Batman to Donald Trump. You can listen to the podcast below.
Garman: He just wasn't that bright.
Smith: Certainly not the world's greatest detective! More like Bat-Trump.
Garman: He was Bat-Trump. A rich guy with a bad attitude. Who really hated immigrants.
Smith: He hates immigrants in a big bad way!
Garman: I'm gonna build a wall around Krypton, and I'm gonna make them pay for it. I'm going to build a wall around the Hall of Justice, it's what I do. I build walls and they're huge."