By all means try a tooth pick and pure alcohol, if that doesn't work a professional might get you set straight.
Repair shops can do a better job cleaning than a home option. I had a data and charge problem, bought a kit and tried 3x times; it didn't work . Bought new cables just in case that was the issue. Brought it in for repair fully expecting to pay for a port repair. Repair shop did a through cleaning charged me $15 and sent me on my way with everything working.
Thanks kind stranger. That was nearly 20 years ago for me, but still neat.
It pads out the runtime, making theaters take longer to get the next showing in. That is the reason why everyone doesn't get a credit. That said studios still seem to squeeze a few credits on screen that are not required.
The easiest way to prove this is to see who on a film DOESN'T get a credit. It's going to be non-union positions to go uncredited. For as many credits as you see there are hundreds of unlisted ones. Just about anytime you see a company credited for vfx and you see only 10 names, an easy 20 were left off.
It cost money to add credits to a movie. Studios don't do much more than they have to.
I got a credit once. It was cool and made my mom happy.
Not unless he became Asian. You can click on the picture in the article to make it full screen. Not Woz.