Since I'm not well versed in film soundtracks, I think the only ones i have in my library is "Titanic" and "Lawrence of Arabia" - and that was a gift, I will share two ticket incidents.
Twice now, I've ordered tickets online for an evening performance of a show that had a matinee/evening schedule on the same day. I always try and do will call as that usually will keep the cost down. Well, both times, I went to the box office to pick up my tickets and found that the tickets I had ordered were for the afternoon show. Both incidences have happy endings as they were able to seat us in BETTER seats than the ones I had thought I purchased. I guess it helps when both times it was for shows that didn't sell well to begin with. (the LAST equity tour of Les Miserables and the not-so-great tour of Whistle Down the Wind
So now, I'm very cautious when ordering online.