The movie is also kinda made by someone who loved the comic whilst also not understanding it. The flashy action especially is kind of ridiculous, but a lot of the characterisation lacks nuance or depth.
For me, it's like the TV show treats the comic book as what really happened, and the movie like a Hollywood movie based on the true story.
I think you really should read the comic before you read the TV show, but if you're not going to read the book, the movie will suffice.
The ending is the biggest plot difference, but it's also just a fairly shallow movie. Some good performances though.