The stars of Marvel's latest superhero movie were in London on Thursday (July 25) for the European premiere of 'Guardians of the Galaxy'. Chris Pratt joined Vin Diesel and Zoe Saldana on the red carpet. But there were a few surprise attendees. Chris Hemsworth greeted fans, while "Star Wars'" Luke Skywalker himself, Mark Hamill posed for photos.

Benedict Cumberbatch hit up San Diego's annual Comic-Con on Thursday (July 24). The actor walked the red carpet alongside a life-sized version of Skipper the Penguin to promote "Penguins of Madagascar." Cumberbatch voices his first animated character in the film, a wolf named Agent Classified.

Also attending the festival was Jeff Bridges. The actor was on hand to screen an exclusive 6 minute snippet from the upcoming film "The Giver" based on the popular young-adult novel. The movie is set to hit the big screen on August 15.

Finally, Robert Downey Jr.'s "The Judge" will be the opening movie at this year's Toronto Film Festi