DAY OF THE EVIL GUN (1968, USA, 95m, PG) *** Western dist. Metro-Goldwyn-Mayer (MGM); pr co. Metro-Goldwyn-Mayer (MGM); d. Jerry Thorpe; w. Charles Marquis Warren, Eric Bercovici (based on a story by Charles Marquis Warren); pr. Jerry Thorpe; ph. W. Wallace Kelley (Metrocolor | 2.35:1); m. Jeff Alexander; ed. Alex Beaton; ad. George W. Davis,…