I backed up Syriana [R1 WS] with all available English subtitles. There is a primary subtitle and a secondary subtitle track, and to my surprise both included everything said in English. There doesn’t seem to be a subtitle track with only the words spoken in Arabic. Perhaps there was such a subtitle track and it was not labeled as being English, as I always have CloneDVD copy all subtitle tracks.
I don’t think your problem is with AnyDVD but rather the fact that you didn’t choose English subtitles when making your backups. A “forced” subtitle is one which you can not disable. This is a protected user operation, similar to the “forced” studio logos that play before the menu loads on most commercial DVDs. AnyDVD simply removes this protected operation, allowing you to disable the subtitle if you choose. If you back it up, it will still play by default.
For example, when I backed up “Goodbye Lenin” [R1 WS] I made sure to include the English subtitle as the entire movie is in German. When I play the movie from my backup disk, the English subtitle is used automatically. If the subtitle was forced, I wouldn’t be able to 't disable the subtitle. In this case, I had the choice of playing the movie with or without the subtitle track.
However, if you don’t include the subtitle track in your backup, there’s obviously going to be no to play it, let alone for it to be forced upon you.
As for the LOTR Trilogy, at least on the Extended Edition DVDs, the "forced " subtitles are actually part of the video. If you watch the ending of The Return Of The King, you’ll see English subtitles in small lettering as part of the video while the Elves speak.