Rapper Ludacris performs on stage at the Opening Night Performance during the 2015 Tribeca Film Festival at the Beacon Theatre on April 15, 2015 in New York City

Rapper Ludacris performs on stage at the Opening Night Performance during the 2015 Tribeca Film Festival at the Beacon Theatre on April 15, 2015 in New York City

*The Tribeca Film Festival kicked off Wednesday night at the Beacon Theatre with the premiere of the 40th anniversary “Saturday Night Live” documentary “Live From New York!” followed by a short concert from Ludacris, who had nothing to do with the movie.

According to Variety reviewer Ramin Setoodeh the room “quickly” emptied out, “as many in the audience — confused by his connection to the night — fled for the door.”

The smattering of current “SNL” cast members in attendance included Beck Bennett, Bobby Moynihan, Leslie Jones, Sasheer Zamata and Kate McKinnon, as well as executive producer Lorne Michaels and former NYC mayor Rudy Giuliani.

“Are you still with me?” Ludacris yelled out to the thinning crowd. “I got a lot of hit songs.”

He also criticized the theater’s acoustics. “We’re trying to get the sound right,” he said after several songs. “This is a professional show.” He ended his performance abruptly, without an encore.