Character mistake: At the memorial service the principal says that it's been 39 days since 39 loved ones had died. But there were 40 students on the plane and 4 chaperones, making the total 44. Now 7 people got off the plane, which means 37 people related to that memorial service actually died, not 39. Two pilots would make up the numbers, but there would be flight crew too, which still leaves the numbers off.
Character mistake: When Carolyn first addresses Imam, she quite obviously pronounces his name "ell-mom," as though the capital I in his title were a lower-case L. It should be pronounced "ee-mam". We distinctly hear Ali call out his name in this fashion after the ship crash lands on the planet.
Character mistake: When Jenny McCarthy goes to the office to meet the director. She's calling out his name to see if he's there & calls " Roman.......Ronin.......Roman". (00:23:15)
Character mistake: Patrick, being the music buff that he is, mistakenly claims that Huey Lewis' Fore! came out in 1987, when it was actually released in 1986.
Character mistake: The American flag at the New Orleans Mardi Gras is hung the wrong way on the building.
Character mistake: In the beginning scene, the doctor cuts his finger open while performing the operation. However, despite the high risk for infection, especially given the extraordinary circumstances of the procedure, and despite the fact he's a medical professional... he doesn't immediately run to rinse off his wound and change gloves. And you can't argue it's Tomie's supernatural influence, because they haven't even seen her yet.