Bullet Train (2022).
 

Bullet Train - Rotten Tomatoes

Reminded me a lot of Deadpool. If you liked the dark humor in that movie, you will probably like this one.

The violence is way over the top.

I loved the characters, the cameos and the humor in this movie. The action is occasionally in-your-face graphic, over-the-top silly but quite fun. The plot is insanely and hilariously convoluted.

Movie advertised as a comedy. Most gruesome comedy I have ever seen.