You may have noticed a “leaked” video that was accidentally included in Rise of the Tomb Raider. Here’s an official statement by Crystal Dynamics:

“As some eagle-eyed Rise of the Tomb Raider players have discovered, two placeholder movies were accidentally included in the latest patch. This content was not meant to be released, but now that it is we wanted to respond to the questions we’ve received as a result. The movies are part of a DLC expansion we’re exploring for Rise of the Tomb Raider. Our fans continue to enjoy Rise of the Tomb Raider and its DLC, including Cold Darkness Awakened which released on Tuesday, and we receive many requests for additional story content. We’re always listening to feedback from our fans; especially this year as we celebrate 20 years of the iconic Lara Croft and the Tomb Raider franchise together.”

Video  credit – 

Gian Carlo at Tomb Raider Forums