Film critic Roger Ebert will be at TIFF participating in a festival panel that conducts a “Twitter showdown.”

At the panel today (4 p.m. at the Filmmakers’ Lounge), six Twitter-savvy panelists will each respond via Tweets to Ebert’s statements about the film industry.

The participants are Rainn Wilson, David Poland, James Gunn, Eric Kohn, Grace Wang and Scott Tobias.

The audience will vote on who has the best Tweets.