Can the film in the plastic bottle still be used when it falls into the water?

The color film you mentioned is called "reverse film" in photography.

No matter what kind of film it is, its composition is: the substrate is polyvinyl acetate, and the 3-4 layers of the film are silver halide, coupler and anti-glare coating. These chemical elements still exist in the imaged film ~ ~ You may not have developed the photo, so when developing the photo, you should put the film into clear water to develop it ~ ~ So the used film can be developed with water ~ ~ Provided that it can't be wiped by hands or other objects after entering the water, and let it dry naturally.

If it's a new film that hasn't been shot, there's actually no such problem, but the problem is that you can't take it out to air dry, so it will be exposed ~ ~ Theoretically, it won't affect it ~ ~ But it may take a long time for you to let the film dry itself in the roll.

Retrograde films can be stored for 1-2 months or more ~ ~ at least 8 years-10 years ~ ~ but they can't be dried ~ ~ wet ~

I can say responsibly ~ ~ It's okay if the box falls into the water ~ ~ It's just fine if it's sealed ~ ~ It can be used ~