Watched Gravity and Grown Ups 2 yesterday. Thought Gravity was disappointingly average. I'm sure it's a much better experience in the cinema, but there's still not much of a story there. Don't really need to say anything about Grown Ups 2. ha.
Just saw it today. I understand the beginning of movies tend to be boring as the plot is setup. I was honestly bored out of my mind for the first 30 minutes though. I guess I'm just the type of movie watcher who likes action within at-most the first 10 minutes.
Like you said (and I agree with) -- average.