Cooper and his family saving the day is an interesting tale, with much dry humor from kids, grandparents and robots. Many elements are missing, such as international collaboration, the lack of police presence in crisis, etc.

Not enough time is invested in making the underlying story realistic. We are not piqued enough to be interested in the "ghost" and the audience is not given much backdrop that would make us care for the characters--just take their integrity for granted--which works out well for the elder Brand's deception, but not for us to care much for the continual loss throughout the storyline (mother, astronauts, etc.). A stronger understanding of plan B would have boosted it's credibility for a stronger audience buy-in. Also, the lack of clarity on the "they" who opened the wormhole is totally missing. If they are so advanced they can create a wormhole just when the earth needed it, how did they get there? If they got "there" OK, why need to send Cooper back and forth? It ends up more ridiculous the more you think about it, rather than mysterious. Personally, I believe that Jesus'(God's) plan for a new heaven and new earth are better than this plot--anti-gravity principles all inclusive!