TORONTO -- The Toronto International Film Festival is in full swing, with A-listers George Clooney and Sandra Bullock among those hitting the circuit on Day 3.

Top-line screenings include the Rathergate-inspired film "Truth," Tom Hooper's "The Danish Girl" with Eddie Redmayne as a transgender painter; and "Trumbo" with Bryan Cranston and Helen Mirren.

Here's a look at some of the festival highlights from Saturday:

After being stranded in outer space together for "Gravity," co-stars Sandra Bullock and George Clooney reunited on solid ground in Toronto to talk about their longtime friendship on- and off-screen.

"George and I have known each other since long before we actually had jobs in this business, literally out of college. We've seen each other through many facets and stages of life and this is just another one of those facets and stages. And the nice thing is we still like each other at the end of it, we still admire each other," Bullock said.

"We disagree well. We disagree and we fight fair, so that's a nice thing after all these years to be able to still say."

"And we have fun," added Clooney.

"Our Brand is Crisis," which was produced by Clooney, is about American political strategists trying to rig a Bolivian presidential election.

Bullock's role was originally imagined as a male character but Clooney was happy to adapt it for his old friend.

"It actually made sense and the minute (co-producer Grant Heslov) called me up and said, 'Sandy had an idea' we were like, 'God, that's a great idea."'

Bullock was thrilled to convince Clooney and Heslov about the last-minute change.

"I was able to say, 'Would you be willing to take a role that was written and you guys have cherished and worked on for a long time and developed a long time and change it," she said.

"And there was not a lot of hesitation, the only hesitation was could the writer do it, so that hopefully shows a shift in the climate for women in film."

Clooney and Bullock were asked about American politics and to comment on presidential hopeful Donald Trump and his controversial comments about Mexican immigrants looking to start a life in the U.S.

"I think we're trying not to get into American or Canadian politics or anybody's politics at a press conference because it ends up just being about that suddenly," Clooney said.

"Anybody who says as intolerant words as those should be laughed at and that's pretty much, I think, what eventually history will do."

When asked which of Bullock's past roles Clooney thinks he could've played better he didn't hesitate for a moment.

"I think we all know it's 'Miss Congeniality,"' he said.

"I rock a swimsuit better than almost anyone -- a one piece."

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As you wish.

Jason Reitman's live read series delighted a packed Toronto theatre as a star-studded cast took over roles from the family favourite "The Princess Bride."

Two of the biggest surprises came early in the night -- first the film's director, Rob Reiner, strolled on stage to play the grandfather who narrates much of the story to his grandson, and then, to raucous applause, actor Cary Elwes, who starred in the film as the hero Westley, appeared to read his original role.

"This is one of my favourite films," the Montreal-born Reitman said before the cast began to read out the screenplay in its entirety. "This is going to be a lot of fun."

There was plenty of CanCon on stage: London, Ont.-bred Rachel McAdams played Princess Buttercup, originally performed by Robin Wright; former NHL enforcer Georges Laraque tackled the role of Fezzik, made famous by wrestler Andre the Giant; and Canuck kid actor Gage Munroe played the grandson, first played by Fred Savage.

Other celebs participating included Patrick Stewart in the role of the villainous Prince Humperdinck, former "Community" co-star Donald Glover as kidnapper Vizzini, a role previously handled by Wallace Shawn; and Chris O'Dowd as the evil Count Tyrone Rugen, originally played by Christopher Guest.

A delayed flight meant Mexican star Gael Garcia Bernal only took on the role of the revenge-bent Inigo Montoya halfway through the performance, but Reitman's sister, Catherine Reitman, ably filled in until his arrival.

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Rachel Weisz didn't know Colin Farrell until they worked together on "The Lobster" -- but she had admired him from afar.

"I was a fan of his work," the British actress said Saturday. "I loved him in 'In Bruges' and in the Terrence Malick film ('The New World')."

In Greek director Yorgos Lanthimos's outlandish "The Lobster," which premiered at the Toronto International Film Festival on Friday, Farrell plays a recently divorced man in a world where all single people are forced into a picturesque hotel and forced to find a mate.

If the lonely hearts can't find a suitable match, they are then transmogrified into an animal of their choosing. The only alternative is to seek escape in a nearby forest, where they're hunted and rounded up by the mingling singles.

Weisz and Farrell, as it turns out, were fast friends.

"I just loved working with him," she said. "He's incredibly funny, and has a very, very hungry intellect and mind and he's very warm and immensely soulful."

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Movie lovers who can't make it to the Toronto International Film Festival can take part virtually this year.

For the first time, the festival is experimenting with an online-only screening.

Programmers have put together a package of international short films playing at the festival.

They'll be online for just 24 hours, starting on Wednesday.

The screening will include a Q&A roundtable with the films' directors.

TIFF is selling 500 tickets at $10 each. They will be available until Tuesday.