Question [Q] Feasibility of an App Idea

First of all, I dont know if this is the right forum to post the thread.. Honestly I could not find a better place..

So.. I have an app idea but am nowhere near to an developer.. Though I understand basic Java, app development is a distant dream for me
...Its basically an app with which a user can plan out their evening... the whole idea is in a very rudimentary stage...

Now to my question:

How difficult is it to code an application which looks at Google Maps and Other Google Databases to get details such as
1. Movies running in the city with their timings
2. Restaurants in a location along with their timings and ratings.

And also is there any permissions to be acquired for this data retrieval from Google