Cinema and physical needs don't go together. You'll get up from the theater to satisfy your need and miss the most important scene! How do you solve the problem ?
As funny as it sounds, there's an app for that too!
It's called RunPee and because it knows the play you're watching, it knows when the plot is getting boring and suggests when to go to the bathroom! That way, you won't miss anything important.

At the same time, while you're on the toilet, the app also keeps you updated on the big screen, no matter how insignificant. When you return to your seat, it's as if you were never there..
The idea for RunPee came to creator Dan Florio when, while watching the three-hour film King Kong, he couldn't even go to the bathroom because he was afraid he would miss an important scene!
The success of RunPee is such that to date it has 1,000,000 downloads and 450,000 active users!
Source: thetoc.gr

