Allison Clapp took sons Randy and David to see "Cars II" at AMC Avenue Forsyth 12 earlier this week. While the family has seen many films at the theater complex, which is close to their home, this experience was different. It was the first time the Clapps had seen a film on the new and very large IMAX screen at the theater, located in the Avenue outdoor shopping mall at Ga. 400 and Peachtree Parkway.