OK. So skip this message if you haven't seen the new film and want the ending to be a surprise.

The "Mexican journal" may not be as universally accepted as bogus as Q suggests. Here's what today's online Chronicle of Higher Education says about it:

Regarding Davy Crockett's death, Mr. Hancock's film is faithful to the account of José Enrique de la Peña, a lieutenant colonel in the Mexican army, who wrote in his 1836 diary that Crockett and a handful of other Alamo defenders were executed after the siege.

De la Peña's account, which was not published in English until 1975, has divided historians. As Q notes, some authors have questioned its veracity, including Thomas Ricks Lindley in "Alamo Traces" (Republic of Texas Press, 2003). One of the historians who worked on the new movie, who lives in Katy, Tex., has been criticized, even cussed out, for arguing that Crockett did not die fighting. "Down here," he says, "that draws up a similar image to saying Christ didn't resurrect."

There is no other account of Crockett's death, however, and the historians who worked on the movie accepted de la P.'s account that Crockett was executed.

In the absence of other contemporaneous accounts, the burden of proof seems to be on those who would have Davy go down swingin' (like Fess Parker) or with a self-selected bang (as John Wayne).