Title: I Am Number Four (film)
Content:  Principal photography began on May 17, 2010, using 20 locations all within the Pittsburgh metropolitan area. DreamWorks selected the area primarily due to tax incentives from the Pennsylvania Film Production Tax Credit. The film studio also had a positive experience shooting She's Out of My League in Pittsburgh in 2008. The production was scheduled to last 12 to 13 weeks. Cinematographer Guillermo Navarro shot the film on 35 mm, using a format known as Super 1:85. Beaver, the former Conley Inn in Homewood, and nearby Buttermilk Falls were used as locations in the film; interior and exterior scenes were shot near a boat launch in Monaca. 
Title: I Am Number Four (film)
Content:  plot, and its surrounding hills. The school was also selected for its one floor layout, wide hallways, and its football stadium in front. Teachers and recent graduates appear in the film, and a set that replicates the school was built in a studio in Monroeville for filming explosion scenes. In the last few weeks of production, scenes were filmed at the 200-year-old St. John's Lutheran Stone Church in Lancaster Township. Additional filming took place in the Florida Keys in the beginning of the film in Big Pine Key, Florida as well as the spanning of the drive over the bridge showcases the keys 7 mile bridge.
Title: I Am Number Four (film)
Content:  I Am Number Four is a 2011 American teen science fiction action film directed by D. J. Caruso and starring Alex Pettyfer, Timothy Olyphant, Teresa Palmer, Dianna Agron, and Callan McAuliffe. The screenplay, by Alfred Gough, Miles Millar, and Marti Noxon, is based on the 2010 novel of the same name, one of the Lorien Legacies young adult science fiction novels. Produced by Michael Bay, I Am Number Four was the first film production from DreamWorks Pictures to be released by Touchstone Pictures, as part of the studio's 2009 distribution deal with Walt Disney Studios Motion Pictures. The Hollywood Reporter estimated the budget to be between $50 million and $60 million. The film was released in both conventional and IMAX theatres on February 18, 2011, received generally negative reviews, and grossed $150 million.
Title: I Am Number Four (film)
Content:  spring fair scene was filmed in Deer Lakes Park in West Deer; Port Vue, North Park, New Kensington and Hyde Park were also used as locations. The setting of the film's fictional town of Paradise, Ohio is Vandergrift, Pennsylvania, where filming took place from June to July 2010. Producers chose Vandergrift as the "hero town" of the film because of its unique look and curved streets, laid out by Frederick Law Olmsted, the designer of New York City's Central Park. Franklin Regional High School in Murrysville was chosen over 50 other schools in the area, due to its proximity to nearby woods, a part of the 
Title: I Am Number Four (film)
Content:  I Am Number Four was edited by Jim Page, with Industrial Light & Magic developing the visual effects for the alien Pikens. The film was scored by former Yes guitarist Trevor Rabin.
Title: I Am Number Four (film)
Content:  his friends were attacked. Henri tells John that too many people are suspicious and they have to leave. John refuses because of Sarah. The Mogadorians continue searching for John, while being trailed by Number Six, who is also trying to locate Number Four. Number Six's guardian was killed, and she realizes that the remaining six Garde will have to team up and fight against the Mogadorians. The Mogadorians locate John and manipulate two conspiracy theorists into capturing Henri. When John and Sam go to rescue Henri, they have to fend off an attack by the Mogadorians. Henri dies, while John and Sam escape with 
Title: Franklin Regional School District
Content: In the summer of 2010, the science fiction film I Am Number Four, produced by Michael Bay and Steven Spielberg, directed by D.J. Caruso, and starring Alex Pettyfer, Dianna Agron, and Timothy Olyphant, was filmed at Franklin Regional High School. The film crew explained that the school was chosen due to State Film tax incentives that exempt the maker from paying state income taxes, as well as other taxes. 
Title: I Am Number Four (film)
Content:  In March 2010, Alex Pettyfer was in talks to play the title character in the film, Number Four. It was later confirmed that the 21-year-old British actor would play the lead. Sharlto Copley was going to star as Henri, Number Four's guardian and mentor, but had to drop out due to press obligations with his film The A-Team. Copley was replaced by Timothy Olyphant. Kevin Durand plays the villain of the film, Commander, the Mogadorian who leads the hunt for the Loriens on Earth. DreamWorks went through multiple rounds of tests to find the right actress for the female romantic lead. Dianna Agron, a star in the Fox television series Glee, won the role. She plays Sarah Hart, a girl who used to date a high school football player, but falls for Number Four and keeps his secret. Jake Abel plays the football player, Mark James, an antagonist in the film. Teresa Palmer plays the other Loric, Number Six, and 16-year-old Australian actor Callan McAuliffe plays Sam Goode, Number Four's best friend.
Title: I Am Number Four (film)
Content:  Florida to an old farm in Paradise, Ohio, where John befriends conspiracy theorist Sam Goode and a Beagle which he names Bernie Kosar. He also falls for an amateur photographer, Sarah Hart. Her ex-boyfriend, football player Mark James, is a bully who torments both John and Sam. During the Spring Scream Festival, Mark and his friends chase Sarah and John into the woods. When they attack, John uses his powers to fend them off and rescue Sarah. Sam witnesses this, which leads John to reveal his true origins. The next day, Mark's father, the local sheriff, interrogates Henri on John's whereabouts when his son 
Title: I Am Number Four (film)
Content:  The film was produced by DreamWorks and Reliance Entertainment. Film producer and director Michael Bay brought the manuscript of the young adult novel I Am Number Four to Stacey Snider and Steven Spielberg at DreamWorks. A bidding war developed for the film rights between DreamWorks and J. J. Abrams, with DreamWorks winning the rights in June 2009, with the intention of having Bay produce and possibly direct the project. The rights were purchased with the hope of attracting teenage fans of The Twilight Saga films, and the potential of establishing a film franchise, with at least six more installments planned by the book's publisher. Al Gough and Miles Millar, the creators of the television series Smallville, were hired to write the screenplay in August 2009. Marti Noxon, writer and producer for the television series Buffy the Vampire Slayer, also contributed to the 

Question: where was the movie i am number 4 filmed?
Answer: the Pittsburgh metropolitan area.