Thanos has destroyed half the universe in this final installment of Marvel’s Avenger series. Can the remaining Avengers save the day? An all-star cast includes Robert Downey Jr., Mark Ruffalo, Scarlett Johanson, and the Chris’s (Pratt, Hemsworth and Evans). Rated PG 13. 182 minutes. Tickets $7 for adults and $5 for those 18 and under.