When Paramount let slip last week that it was moving G.I. Joe: Let's Try This Again from its plum June 29 première all the way to March 29, 2013, the official explanation was that the studio needed that nine-month delay to add the 3-D that makes films visible to the modern eye. But surprisingly, there may be more to it than that suspicious, rash last-minute decision to undergo a costly conversion that has not necessarily been proven to contribute to a movie's success. Deadline did some typically self-congratulatory investigative reporting and discovered that, actually, the real reason is that test screenings for the film were "mediocre to bad," not least because the sequel chooses to [SPOILER FOR ANYONE WHO CANNOT INFER THINGS FROM TRAILERS OR GENERAL PLOT SUMMARIES] kill off Channing Tatum's character, a decision made well before Channing Tatum became among Hollywood's most marketable stars (though this was an outcome that, to be fair, only the most sophisticated crowd-sourced algorithms could have predicted).