1. The Flash eating a whole lot of stuff while running, like a gluttonous superpig on steroids.

2. Batman refers to Aquaman as a "super mermaid" (that would be merman, duh). This is just one example of a whole lot of bad dialogue throughout most of the movie.

3. We're reintroduced to Bruce Wayne as a long-haired, old hermit wearing slippers. Way to reduce our heroes to pitiful versions of themselves.

4. If Barry Allen wasn't annoying enough, we're introduced to an even more annoying, younger Barry Allen and now there's two of them for the majority of the movie.

5. Batman attempts to give old Barry Allen his powers back by dowsing him in chemicals and electrocuting him with chemicals, but it fails, so Supergirl flies him up through the rain into the clouds to be shot by lightning again... but wouldn't the pouring rain have washed off the chemicals? (I guess it doesn't matter because it's all b.s. anyways.)

6. Seeing the blue lightning behind the younger Barry Allen doesn't make sense because he has exactly the same powers as the other Barry Allen - it's done just to differentiate them. If that wasn't bad enough, the explosions associated with the different Flashes were coloured this way too.

7. In the final battle, General Zod and the other Kryptonians are much slower than the two Flashes, which doesn't make sense, because Superman and The Flash raced each other in the post-credits of The Justice League and were pretty much equal in speed. Also, if Zod is so darn slow, why can't the Flashes beat him? We've seen Zod's Kryptonian blade pierce the flesh of Supergirl, so it should be able to kill Zod too.

8. Batman didn't have to die at all: the Flashes went back in time and saved him the first time, so they could've just gone back and saved him a second time.

9. The younger Barry Allen gets a Kryptonian blade stuck in his arm. Does he bleed out? Nope. Does it slow him down? Nope. Instead he wields it as a f'n weapon! Not only that, he goes back in time so many times that he becomes a human hedgehog of kryptonian blades and sh*t sticking out of him. It's complete nonsense.

10. The CG is awful, especially the toilet bowl time travel effect that keeps reminding the audience that this movie is going down the sh*tter.

1. The Flash eating a whole lot of stuff while running, like a gluttonous superpig on steroids.

2. Batman refers to Aquaman as a "super mermaid" (that would be merman, duh). This is just one example of a whole lot of bad dialogue throughout most of the movie.

3. We're reintroduced to Bruce Wayne as a long-haired, old hermit wearing slippers. Way to reduce our heroes to pitiful versions of themselves.

4. If Barry Allen wasn't annoying enough, we're introduced to an even more annoying, younger Barry Allen and now there's two of them for the majority of the movie.

5. Batman attempts to give old Barry Allen his powers back by dowsing him in chemicals and electrocuting him with chemicals, but it fails, so Supergirl flies him up through the rain into the clouds to be shot by lightning again... but wouldn't the pouring rain have washed off the chemicals? (I guess it doesn't matter because it's all b.s. anyways.)

6. Seeing the blue lightning behind the younger Barry Allen doesn't make sense because he has exactly the same powers as the other Barry Allen - it's done just to differentiate them. If that wasn't bad enough, the explosions associated with the different Flashes were coloured this way too.

7. In the final battle, General Zod and the other Kryptonians are much slower than the two Flashes, which doesn't make sense, because Superman and The Flash raced each other in the post-credits of The Justice League and were pretty much equal in speed. Also, if Zod is so darn slow, why can't the Flashes beat him? We've seen Zod's Kryptonian blade pierce the flesh of Supergirl, so it should be able to kill Zod too.

8. Batman didn't have to die at all: the Flashes went back in time and saved him the first time, so they could've just gone back and saved him a second time.

9. The younger Barry Allen gets a Kryptonian blade stuck in his arm. Does he bleed out? Nope. Does it slow him down? Nope. Instead he wields it as a f'n weapon! Not only that, he goes back in time so many times that he becomes a human hedgehog of kryptonian blades and sh*t sticking out of him. It's complete nonsense.

10. The CG is awful, especially the toilet bowl time travel effect that keeps reminding the audience that this movie is going down the sh*tter.