(at around 1 min) At the beginning of the movie, when Abe opens his anniversary gift, the watch in the box is showing the time as 9:30, but when he pulls it out of the box, the watch shows the time as 9:15.
Biblical Greek is called "koine" Greek. It was the language of the marketplace throughout the Greco-Roman world. Depending on the case of the noun (assumed by adjectives as well), the words for "third day" are "trite hemera". "Mera" is a total corruption.
(at around 1h 6 mins) The phrase "Tria mera" isn't proper greek, nor is it how "third day" is in the Bible. In greek "third day" is "triti mera". "Tria" means three and "triti" means third. The actual phrase from the bible is also "triti mera". Furthermore, if you try to turn "Tria mera" to numerical value using the greek numericals, you get 557 and not 666. Using the movie's numerical values, "triti mera" would have a value of 1074. However, "Tria Mera" does work if you take into account that the numerical values of letters are different for lowercase vs. uppercase.
(at around 1h 30 mins) When the ambulance is heading towards the tanker truck, there is no camera on the cab of the ambulance. Once the ambulance begins to flip, the stunt camera can clearly be seen on the cab of the ambulance even after it has come to a stop.