My question is

 > Let's say you have an object moving through space locally at less than the speed of light. Is it possible to watch that object playing backwards like a record spinning the wrong direction according to general relativity?

If the answer is yes, then that probably means it's also possible to produce something like the sonic boom but with light. So a really distant object that normally would be extremely dim could have a flash of appearing much brighter than usual. Having 2 images of a galaxy behind another galaxy from gravitational lensing doesn't count. I know that if you look at the one from more recently then the one from longer ago, you are observing one event first then another event that's in its past light cone. However, in each image, you are watching it playing forwards.