What's Eating Gilbert Grape is a 1993 American drama film directed by Lasse Hallström and starring Johnny Depp, Juliette Lewis, Darlene Cates, and Leonardo DiCaprio. Peter Hedges wrote the screenplay, adapted from his 1991 novel of the same name. Wikipedia
Momma: You're my knight in shimmering armor. Did you know that?
Gilbert: I think you mean shining.
Momma: No shimmering. You shimmer, and you glow.