Look at the language field and see how many unique languages there are. Look for duplicates or weird entries. Remap them if necessary. Then paste the unique values here for everyone to see.
group the data by ID, and create a column that lists all the languages a movie is available in, and a column that lists all languages code for each movie
Look at the language field and see how many unique languages there are. Look for duplicates or weird entries. Remap them if necessary. Then paste the unique values here for everyone to see.