Avengers Assemble wow Westfield: the week in film - in pictures

Hunger Games star Jennifer Lawrence attempts to hit a watermelon with an arrow on the television show El Hormiguero in Madrid, Spain Photograph: Juan Naharro Gimenez/WireImage

Everyone (specifically, the lady on the right) is a critic … Scarlett Johansson poses for photographs at the Avengers Assemble premiere in the Westfield shopping centre in London Photograph: Justin Tallis/AFP/Getty Images

Actual superheroes put in an appearance at the Avengers Assemble premiere Photograph: Jon Furniss/WireImage

Fix the chimney while you're up there … a motorcycle stunt rider and crew are seen on rooftops filming the new James bond film Skyfall in Istanbul, Turkey Photograph: ZAMAN/SIPA/Rex Features

Next stop, Stringfellows! The cast of American Pie: Reunion pose on an open-top bus in London. (Anti-clockwise from left) Tara Reid, Jennifer Coolridge, Seann William Scott, Jason Biggs, Mena Suvari, Eddie Kaye Thomas, Eugene Levy, Thomas Ian Scott and Chris Klein Photograph: Jon Furniss/WireImage

The director of the Tunisian private TV channel Nessma television, Nabil Karoui, leaves the courthouse in Tunis after the postponment of his trial. Karoui is charged with 'insulting sacred values' for broadcasting the Iranian film Persepolis in October 2011. Karoui, said on arrival: 'It's the trial of 10 million Tunisians who dreamed of having a democratic country' Photograph: Fethi Belaid/AFP/Getty Images

Tunisian Islamists shout slogans outside the courthouse in Tunis where the trial of the director of the Tunisian private TV channel Nessma television was taking place Photograph: Fethi Belaid/AFP/Getty Images

Robert De Niro arrives with his wife Grace Hightower for the premiere of The Five-Year Engagement, which opened the 2012 Tribeca film festival in New York Photograph: Lucas Jackson/Reuters

Director Judd Apatow and actors Elizabeth Banks and Bill Hader attend the opening night party of the 2012 Tribeca film festival at the Museum of Modern Art (MoMA) in New York Photograph: Michael Loccisano/Getty Images

Ziggy Marley, Robert Marley, Snoop Dogg and Rohan Marley attend the Los Angeles premiere of Marley Photograph: JB Lacroix/WireImage

Zac Efron waves to the fans while being interviewed at the premiere of The Lucky One at the Grauman's Chinese Theatre in Hollywood Photograph: Mario Anzuoni/Reuters

Diane Keaton and a rescue dog up for adoption attend the premiere of Darling Companion in Hollywood Photograph: Todd Williamson/WireImage

Martin Scorsese speaks at the Tisch School of the Art's Gala 2012 in New York Photograph: Mike Coppola/Getty Images

Jack Black, Shirley MacLaine and Richard Linklater attend the Bernie premiere in Los Angeles Photograph: Picture Perfect /Rex Features

Andy Samberg and Adam Sandler at the launch of their film That's My Boy in Cancun, Mexico Photograph: Victor Ruiz Garcia /Reuters