X-Men: Days of Future Past” is projected to be the fifth best Memorial Day holiday weekend debut in box office history over a four-day period, just behind “Fast & Furious 6” and above “The Hangover 2.” The seventh installment in the “X-Men” franchise earned $111 million, according to studio estimates on Monday. Warner Bros. sci-fi monster smash “Godzilla” landed at No. 2 with $39.4 million from Thursday to Monday.
