Bay sat down with FOX 32 Entertainment Reporter Jake Hamilton to talk about his new action film Ambulance – but took a moment to speak on Willis.
"Bruce was a real star, a real movie star," Bay said. "It was a little combative in the beginning because he didn’t trust me, I’m still young. And Jerry Bruckheimer, the producer, said ‘Show him some footage.’ So I showed him some footage and he loved it."
Bay added, "I loved working with him, he’s very funny. He’s great at improv, and he really commands the screen.
"It’s sad news, I heard it yesterday."
Bay’s newest film Ambulance hits theaters on Friday, April 8.