I’ve never seen this before, and thought it cool enough to post. It’s a candid shot of Steven Spielberg messing around on the set of Jaws back in 1975. He’s sacrificing himself to the gaping mechanical mouth of Bruce, but seems like he’s enjoying himself a decent amount. But fake or not, those teeth don’t look that comfortable.
Fun facts, the shark in the movie was nicknamed Bruce by the crew after Spielberg’s lawyer (hah), and yes, that’s why Finding Nemo also named its shark Bruce.