Fans of M. Night Shyamalan's previous head-scratchers "Unbreakable" and "Split" might get a tingle from "Glass." The new thriller combines Bruce Willis and Samuel L. Jackson of "Unbreakable," with James McAvoy of "Split." Willis doles out vigilante justice after surviving a train wreck, devised by Jackson's character Mr. Glass in "Unbreakable." James McAvoy returns from "Split." He has double-digit personalities, including "The Beast," a sort of Incredible Hulk character with even more anger issues. The role lets McAvoy improvise like a first year drama student, changing from personality to personality and then pumping up for the superhuman strength of "The Beast." The three characters converge in a maximum care facility run by a no-nonsense Sarah Paulson. Anya Taylor-Joy returns as one of McAvoy's survivors in "Split," and Spencer Treat Clark plays Willis' protective, now grown-up son from "Unbreakable." "Glass" crawls for two slow hours, often stopping for mind-numbing dialog and explanations. It ends with too many false starts and a final twist that fizzles. I see my glass as half full, but this one's empty. "Glass," rated PG-13, 1 star. Does it deliver what it promises? Stitches together characters from earlier movies. Is it entertaining? Slow. Is it worth the price of admission? Fans only.
