I think that the only emoticon that can show what I feel about music videos from movies is this one: ":S".
First of all, I'm not criticizing the movies that actually make MV from songs of the soundtrack (I guess every company does that), I think it's a very smart way to promote a product, sometimes even before it's release. And right now there's some movie soundtracks that I really apreciate like "love me like you do" by Ellie Goulding for 50 shades of Grey, or even "boom clap" by Charli XCX for the movie The Fault in Our Stars. There's many more I like to listen every now and then.
"So what's the problem?", you may ask. Well, when I see a music video from a movie, I get the sense I saw a video mix of the movie with the best and most dramatic moments... Sometimes, the music video just doesn't have any sense, because the way the images were mixed; and the singer is usually in similar locations to the ones that were shot for the movie... There's some MV, that I just prefer to listen to the audio.
And now that I said what I thought about this subject (got me tired, lol) I'll share this music video from the movie "Pitch Perfect 2" (oh, the irony of this post haha), the song is called "Flashlight" and is performed by Jessie J. I really like the bokeh in some scenes, and I just wonder what is digital in there because there's just too many round circles of light in certain scenes to be real... I WANT A MAKING OF TO SEE IT! Oh, and those reflections on the eyes (like the ones on the vid thumbnail) are bit creepy... but my interest is just on knowing on how that was achieved! Overall the images are very sharpen with interesting color patterns!