This could also be done with the texture cache maintenance utility, which is also useful for broader purposes. The use case in question is outlined in the following thread…
https://forum.kodi.tv/showthread.php?tid=166316
Do note that this was posted with an earlier version of Kodi and I assume the script so you may have to slightly tweak. His first example cuts off a couple character’s (that is the only one I tested) so you will have to edit the command but it works.
osmc@kodicave:~$ ./texturecache.py j movies | grep '"title":' | cut -d: -f2- | awk '{print substr($0,3,length($0)-3)}'
*batteries not included
\u00a1Three Amigos!
2 Lava 2 Lantula!
10,000 Saints
12 Years a Slave
28 Days Later
28 Weeks Later
45 Years
1922
A Beautiful Day in the Neighborhood
A Boy and His Dog
This list continued for the rest of my movies. The oddity above is the only one I noticed on quick glance. This is probably minor as movie titles with an upside down exclamation are not common.