Found Footage

• WOTC Official Reminder Textofficial rules
  Surveil — Look at the top N cards of your library. Put any number of them into your graveyard and the rest on top of your library in any order.

• WWizards of the Coast2024-09-20
  Official Ruling
  Found Footage's first ability doesn't let you look at face-down spells you don't control on the stack.
• WWizards of the Coast2024-09-20
  Official Ruling
  Found Footage's first ability lets you look at face-down creatures whenever you want, even if you don't have priority. This action doesn't use the stack. Knowing what those cards are becomes part of the information you have access to, just like you can look at the cards in your hand.

Rulings via Scryfall