Improvenent is possibe by combining the above with relieving yourself immediately before the performance begins.
If you relieve immediately beforehand and can't hold it for 90 minutes, there is likely a medical issue (e.g. old man, pregnant, etc).
I suffer from what I've dubbed "Movie Bladder".
Being in a situation where it would be inconvenient to have to use the bathroom creates the urge, regardless of actual bladder fullness. As soon as the situation is resolved, the urge vanishes. It's all in my head.
Job interview? I'll hit the bathroom five minutes before it begins. As soon as I enter that Zoom call, the urge returns. As soon as we sign off, the urge goes away.
When I fly, I love the window seat, but have too much social anxiety to ask the people in the middle and aisle seats to let me out to use the bathroom. So naturally, as I get seated, the urge comes and remains the entire flight. As soon as we land, the urge is gone. Even after getting off the plane, I'll walk past the bathrooms, and not even the power of suggestion brings back the feeling of needing to urinate.
The urge isn't completely constant, and it's not overwhelming. After all, my bladder is anything but full, since I make it a habit to relieve myself as late as possible before entering the situation. It's still annoying to deal with though, since I know it's all in my head and is not an actual bladder issue.
There might be some fight or flight response that causes you to tense up your muscles, triggered by the psychological association. That could lead to excess pressure on your bladder especially if there's a muscle imbalance.
If I were you I'd go to physical and psychological therapists out of sheer curiosity - probably start with one specializing in pelvic muscle weakness since that is extremely common amongst sedentary professionals.
Avengers Endgame is 3 hours and 1 minute long.
Some of that is credits, and maybe you should be able to hold it for 3 hours anyway, but some people do have medical problems. They should still be allowed to enjoy movies.
I never understand statements like this. You're replying to someone who already mentioned the former statement, and didn't say anything about the latter.
When they did the marathon showing of the extended editions before the first hobbit movie they did an intermission on each movie. It was nice.