Radarr

On the Radarr page, you can see all the movies that it's found. You can then filter those down to a sub-set of movies. You can either double click the value or the column heading to quickly add a new filter, or you can choose from the drop-down options. Filters are from everything that Radarr offers up in the API. I cannot attest to how accurate or complete they are.

Text filters are case-specific

Text in purple is a button to either add the filter or the filter or swap and/or. Try it, I hope it's fairly intuitive.

Save your filter and then you can use it to build a job.

Clicking the (i) icon will fetch FFprobe information about that movie, but you cannot filter on that as it can take way too long to probe every video.

Clicking the Time icon will give you a history of the work done on the source file. You can use this to compare results.

Refresh, at the top, will clear the existing knowledge of movies and refresh that info from Radarr again.