How do I make sprites animation like a video?

What is the speed, or where i can to improve to make my sprites look like a movie?

sielxm3d - I think you should see https://brashmonkey.com/ . Instead of frame-by-frame animation , with Spriter plus scml plugin support for Construct 2 to make procedural animation. Your game will look like a movie animation if done right.

In optic, movies are 24 frames a second to obtain a smooth life-like movement.

Nevertheless, such an amount of frames in C2 will likely go against all the memory management and performance tips.

The solution proposed by chadorireborn could work, Spriter can help out, although I've seen some "old school" animators complain that interpolated animations don't feel as real as they should and don't have the quality of a human-made animation.

The more you add frame to your animation the more detail you can get, but the bigger the hit on download size and memory usage.

Find the balance that works the most for your game.