Google knows which movies I watched where, when, when and at what time and with how many of my friends, and knows it so well even my eyebrows raised slightly in surprise! Google knows I had seen Fast and Furious 7 twice; first time on April 2nd in New Delhi with my office colleague and the second time in Chandigarh with my family friends. Google knows when and how many times I watched a movie, including number of tickets I had booked and location of movie hall with complete address on Google map.
Source: https://thehackernews.com/2015/06/google-event-tracking.html