Like some portentous nightmare, the summer of 2015 presented itself to me the other day at the AMC Loews Cherry Hill. I was there to see Furious 7 (Vin Diesel, start writing that Oscar acceptance speech - now!). But first came the trailers, one after the other after the other, signaling a daunting pileup of digitally polished productions that will be kabooming in 3-D and Imax through Hollywood's most lucrative season.