I recently watched Guardians of the Galaxy, personally i thought it was a great film and as an added bonus it had heaps and heaps of visual effects to go with it.
My favourite character was of course Groot the loveable tough Ent-like creature that acted as muscle for his furry friend Rocket, all the way through the film Groot had multiple scenes with great VFX from something as simple lighting up a cave to him incasing his friends in a wooden protective sphere when they were in great danger.
The storyline is a little bit weird but it runs pretty smoothly but i wasn't too interested in that aspect. What was a truly great was the BIG VFX scenes which must have had so much effort put into them such as in the Nova Corps blockade scene that was truly awesome where they create a seemingly impenetrable barrier with all their ships or the Xandar Orb chase scene as they would need to choreograph Rocket and Groot into it while making it still look smooth both very well executed scenes.
Here you can watch the full fight scene on youtube at: https://www.youtube.com/watch?v=YlyPxpLraaA
Not one of the best films in some departments but if you like lots of action and some jaw dropping VFX i'd give it a watch.