TORONTO — One of the hottest tickets at this year’s Hot Docs documentary festival in Toronto is for The Unbelievers — Monday’s world premiere and three subsequent screenings of the film are sold out.

The documentary follows evolutionary biologist Richard Dawkins and theoretical physicist Lawrence Krauss as they travel the world promoting the importance of science and reason in the modern world.

The pair specifically targets religion and faith.

“If something is comforting, that’s great, but it doesn’t make it true,” says Dawkins, arguably the world’s most famous atheist. “There are people who sincerely seem to think that because something is consoling or comforting that therefore it’s got to be true. That just isn’t logical.”

Appearing on Global’s The Morning Show, Dawkins quoted Canadian experimental psychologist Steven Pinker. “[He] said, ‘If you’re being chased by a tiger, it may comfort you to believe it’s a rabbit. But it is a tiger and it’s going to eat you.’”

Krauss, who was raised in Toronto, said the goal is not to make people feel bad about believing in God.

“We recognize that all of us need comfort in different ways,” he explains. “What we’re just trying to encourage people to do is get comfort from the real world.

“We’re not trying to take something away. We’re trying to add the wonder of reality, the poetry of the real universe, and say ‘you can get solace and wonder from the real world.’ It’s true, you can get comfort from religion but that doesn’t say you have to have religion to get comfort.”